Cospas-Sarsat specification summaries moved to reference/ for internal use only. Links updated to point to official cospas-sarsat.int site. The extracted images remain in public/ for use in other pages.
3583 lines
95 KiB
Markdown
3583 lines
95 KiB
Markdown
---
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title: "R011: C/S R.011 Issue 1 Rev 1"
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description: "Official Cospas-Sarsat R-series document R011"
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sidebar:
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badge:
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text: "R"
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variant: "note"
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# Extended Cospas-Sarsat metadata
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documentId: "R011"
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series: "R"
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seriesName: "Reports"
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documentType: "report"
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isLatest: true
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issue: 1
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revision: 1
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documentDate: "October 2003"
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originalTitle: "C/S R.011 Issue 1 Rev 1"
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---
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> **📋 Document Information**
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>
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> **Series:** R-Series (Reports)
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> **Version:** Issue 1 - Revision 1
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> **Date:** October 2003
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> **Source:** [Cospas-Sarsat Official Documents](https://www.cospas-sarsat.int/en/documents-pro/system-documents)
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---
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COSPAS-SARSAT
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METEOSAT SECOND GENERATION (MSG)
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GEOSAR PERFORMANCE
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EVALUATION PLAN
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C/S R.011
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Issue 1- Revision 1
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R11OCT03
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MSG PERFORMANCE EVALUATION PLAN
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History
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Issue
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Revision Date
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Revised Pages
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Comments
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Approved by CSC-29
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cover – iv, 3-3 to 3-14, A-1 to
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A-6, Annex B, Annex C,
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Annex D
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Approved by CSC-31
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R11OCT03
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LIST OF PAGES
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Page \#
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Date of
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Page \#
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Date of
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latest
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latest
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revision
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revision
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cover
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Oct 03
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A-5
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Oct 03
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||
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Oct 03
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A-6
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Oct 03
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||
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||
Oct 03
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||
A-7
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||
Oct 02
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||
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||
Oct 03
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||
A-8
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||
Oct 02
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||
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||
Oct 03
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||
A-9
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Oct 02
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||
A-10
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||
Oct 02
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||
1-1
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||
Oct 02
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||
A-11
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||
Oct 02
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||
1-2
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||
Oct 02
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||
A-12
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||
Oct 02
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||
A-13
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||
Oct 02
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||
2-1
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||
Oct 02
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||
A-14
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||
Oct 02
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||
2-2
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||
Oct 02
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||
B-1
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||
Oct 03
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||
3-1
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||
Oct 02
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||
B-2
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||
Oct 03
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||
3-2
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||
Oct 02
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||
B-3
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||
Oct 03
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||
3-3
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||
Oct 03
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||
B-4
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||
Oct 03
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||
3-4
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||
Oct 03
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||
B-5
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||
Oct 03
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||
3-5
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||
Oct 03
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||
B-6
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||
Oct 03
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||
3-6
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||
Oct 03
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||
3-7
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||
Oct 03
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||
C-1
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||
Oct 03
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||
3-8
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||
Oct 03
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||
C-2
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||
Oct 03
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||
3-9
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||
Oct 03
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||
3-10
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Oct 03
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||
D-1
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||
Oct 03
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||
3-11
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||
Oct 03
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D-2
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Oct 03
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||
3-12
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Oct 03
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||
3-13
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||
Oct 03
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||
E-1
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||
Oct 02
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3-14
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Oct 03
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E-2
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Oct 02
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3-15
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Oct 02
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3-16
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Oct 02
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F-1
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Oct 02
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3-17
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Oct 02
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F-2
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Oct 02
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3-18
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Oct 02
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3-19
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Oct 02
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G-1
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Oct 02
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3-20
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Oct 02
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G-2
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Oct 02
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3-21
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Oct 02
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3-22
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Oct 02
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||
H-1
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Oct 02
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H-2
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Oct 02
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4-1
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||
Oct 02
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4-2
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Oct 02
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||
I-1
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Oct 02
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||
I-2
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Oct 02
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||
A-1
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Oct 03
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A-2
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||
Oct 03
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||
J-1
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Oct 02
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||
A-3
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||
Oct 03
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||
J-2
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Oct 02
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A-4
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Oct 03
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R11OCT03
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TABLE OF CONTENTS
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Page
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1.
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INTRODUCTION ..................................................................................................... 1-1
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1.1
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Purpose of Document .................................................................................................. 1-1
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1.2
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Background ................................................................................................................. 1-1
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1.3
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Responsibilities ........................................................................................................... 1-2
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1.4
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Schedule ...................................................................................................................... 1-2
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2.
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MSG GEOSAR PERFORMANCE EVALUATION
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GOALS AND OBJECTIVES ................................................................................... 2-1
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2.1
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Performance Evaluation Goals .................................................................................... 2-1
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2.2
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Objectives .................................................................................................................... 2-1
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3.
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MSG PERFORMANCE EVALUATION METHODOLOGY ............................. 3-1
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3.1
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General Evaluation Methodology ............................................................................... 3-1
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3.2
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Detailed Description of Objectives ............................................................................. 3-2
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3.2.1 T-1: Processing Threshold, System Margin and Beacon Message
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Processing Performance ............................................................................... 3-2
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3.2.2 T-2: Time to Produce Valid, Complete and Confirmed Messages ....................... 3-7
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3.2.3 T-3: Carrier Frequency Measurement Accuracy ................................................ 3-10
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3.2.4 T-4: MSG GEOLUT Channel Capacity ............................................................. 3-11
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3.2.5 T-5: Impact of Interference ................................................................................. 3-13
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3.2.6 T-6: Impact of Interference From LEOSAR Satellites ....................................... 3-15
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3.2.7 T-7: MSG GEOLUT Network Performance ...................................................... 3-17
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3.2.8 T-8: Processing Anomalies ................................................................................. 3-19
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3.2.9 T-9: MSG Coverage............................................................................................ 3-21
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4.
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REPORTING GUIDELINES .................................................................................. 4-1
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R11OCT03
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LIST OF FIGURES
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Figure 3-1: Graphs Depicting Processing Threshold, System Margin, Valid Message
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and Complete Long Message Processing Performance ..................................... 3-6
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Figure 3-2: Graphs Depicting Message Production Times .................................................. 3-9
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Figure 3-3: Graphs Depicting Frequency Measurement Accuracy Performance............... 3-11
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Figure 3-4: Graph Depicting MSG GEOSAR Capacity ..................................................... 3-13
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Figure 3-5: Test Set-up for Interference Evaluation ........................................................... 3-14
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Figure 3-6: GEOLUT Valid Message Production Performance ........................................ 3-17
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Figure 3-7: GEOLUT Network Performance ..................................................................... 3-19
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LIST OF TABLES
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Table 3-1:
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Sample Table for Analysed Results for Objective T-1 ...................................... 3-5
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Table 3-2:
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Sample Table for Analysed Results for Objective T-2 ...................................... 3-8
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Table 3-3:
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Sample Table for Analysed Results for Objective T-3 .................................... 3-10
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Table 3-4:
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Sample Table for Capacity Statistics ............................................................... 3-12
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Table 3-5:
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Sample Table of MSG GEOLUT Network Performance ................................ 3-18
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Table 3-6:
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Sample Table of Coverage Statistics ............................................................... 3-22
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LIST OF ANNEXES
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Annex A - Format of MSG Performance Evaluation Reports by GEOLUT Operators
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Annex B - Test Scripts for Objectives T-1, T-2 and T-3
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Annex C - Test Scripts for Objective T-4 (Channel Capacity)
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Annex D - Test Scripts for Objectives T-6 and T-7
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Annex E - Data to be Collected for Objectives T-1, T-2 and T-3
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Annex F - Data to be Collected for Objective T-4
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Annex G - Data to be Collected for Objectives T-6 and T-7
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Annex H - Data to be Collected for Objective T-8
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Annex I – Data to be Collected for Objective T-9
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Annex J - MSG GEOSAR Performance Evaluation Programme Schedule
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R11OCT17.02
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1 - 1
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1.
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INTRODUCTION
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The European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT)
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has installed 406 MHz Search and Rescue (SAR) repeaters on their Meteosat Second
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Generation (MSG) meteorological satellites. This instrument will be made available for use
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in the Cospas-Sarsat GEOSAR system after the completion of initial satellite on-orbit tests.
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Because these satellites were still under development when the Cospas-Sarsat GEOSAR
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demonstration and evaluation programme was conducted, the performance of its SAR
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instrument has yet to be evaluated. In light of this, the Cospas-Sarsat Council has directed
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that an MSG GEOSAR performance evaluation programme be conducted to:
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a.
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establish MSG GEOSAR / GEOLUT performance; and
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b.
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establish specification and commissioning requirements for GEOLUTs which operate
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with the MSG GEOSAR payload.
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1.1
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Purpose of Document
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The purpose of this document is to provide:
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a.
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test procedures for assessing the performance of GEOLUTs which operate with the
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MSG SAR instrument;
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b.
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guidelines for analysing the test results; and
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c.
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guidelines, procedures and schedule for managing the MSG GEOSAR performance
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evaluation programme and reporting the results.
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1.2
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Background
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From 1996 to 1998 Cospas-Sarsat conducted a demonstration and evaluation programme to
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determine the suitability of using satellites in geostationary orbit equipped with SAR
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instruments to process the signals from Cospas-Sarsat 406 MHz distress beacons. This
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programme, hereafter referred to as the GEOSAR D & E, was implemented using the GOES
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series of satellites provided by the USA, the Insat-2 satellites provided by India, and
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experimental ground segment equipment provided by Canada, Chile, India, Spain and the
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United Kingdom. The GEOSAR D & E demonstrated that GEOSAR satellites provided a
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significant enhancement to the Cospas-Sarsat system. Following from this conclusion, in
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October 1998 the Cospas-Sarsat Council decided that the 406 MHz GEOSAR system
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components should be incorporated into the Cospas-Sarsat System as soon as possible.
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R11OCT17.02
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1 - 2
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During the period that the GEOSAR D & E was being conducted, EUMETSAT was
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developing the MSG meteorological geostationary satellite. The decision was made by
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EUMETSAT to include on the MSG satellite a 406 MHz repeater to receive and retransmit
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the signals from Cospas-Sarsat 406 MHz distress beacons. This satellite is scheduled for
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launch in late August 2002, and will be available for use by Cospas-Sarsat in late 2002.
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Because the technical characteristics of the MSG SAR instrument are different from SAR
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instruments on the GOES and the Insat-2 satellites, there is a need to conduct tests with
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Cospas-Sarsat GEOLUTs to establish MSG GEOSAR / GEOLUT performance, and any
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special GEOLUT specification and commissioning requirements. The Cospas-Sarsat Council
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decided that the MSG performance evaluation programme should be based on the technical
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(T) series of tests defined in the GEOSAR D & E Plan, as amended to address anticipated
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MSG performance.
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The administrations of Algeria, France, Greece, Italy, Norway, Spain and the United
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Kingdom have announced that they will be operating GEOLUTs which will track the MSG
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satellite, and have volunteered to participate in the MSG GEOSAR performance evaluation
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programme.
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1.3
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Responsibilities
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France has agreed to act as the Cospas-Sarsat point of contact with EUMETSAT during the
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MSG performance evaluation programme. As such, France is responsible for confirming,
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through EUMETSAT, the operational status of the SAR payload during the test period.
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Furthermore, France has volunteered to transmit the beacon test signals required for much of
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the testing, using the CNES beacon simulator.
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GEOSAR ground station operators are responsible for the development, implementation and
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operation of their GEOLUTs. Each participating GEOLUT operator is responsible for
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conducting the tests as described herein, and to produce a report in the format specified at
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Annex A for the consideration of the Cospas-Sarsat Joint Committee.
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1.4
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Schedule
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The chart at Annex J provides the major milestones of the MSG GEOSAR Performance
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Evaluation Programme.
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- END OF SECTION 1 -
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R11OCT17.02
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2 - 1
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2.
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MSG
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GEOSAR
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PERFORMANCE
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EVALUATION
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GOALS
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AND
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OBJECTIVES
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2.1
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Performance Evaluation Goals
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The goals of the performance evaluation programme are to:
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a.
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characterize the technical performance of the MSG GEOSAR / GEOLUT system and
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confirm that MSG GEOSAR satellite / GEOLUT systems are effective for providing
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useful 406 MHz alert data; and
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b.
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validate specification and commissioning requirements for GEOLUTs which will
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operate with the MSG satellite.
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In addition to the evaluation programme, individual GEOLUTs will have to be tested in
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accordance with the commissioning requirements detailed in document C/S T.010, and if
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appropriate, will be commissioned into the Cospas-Sarsat System.
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2.2
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Objectives
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The programme has been subdivided into specific objectives. Each objective is addressed by
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conducting specific tests and analysing the results. Most of the tests require a beacon
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simulator whose power output and message content can be controlled and varied. The tests
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will be conducted over several weeks to collect enough data to provide statistically valid
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results.
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An overview of each objective is listed below, the detailed descriptions of these objectives
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are provided in section 3.2.
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T-1
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Processing Threshold, System Margin, and Beacon Message Processing Performance
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Determine the processing threshold, processing performance, system margin and the
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performance in respect of long format beacon messages for GEOLUTs which operate
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with the MSG payload. The beacon test signals used to assess these parameters do
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not include beacon messages that collide with each other.
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T-2
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Time to Produce Valid and Confirmed Messages
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Determine the statistical distribution of the time required for the GEOLUT to produce
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valid and confirmed beacon messages. The beacon test signals used to assess this
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parameter do not include beacon messages which collide with each other.
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R11OCT17.02
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2 - 2
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T-3
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Carrier Frequency Measurement Accuracy
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Determine how accurately the beacon carrier frequency can be determined by the
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MSG GEOSAR / GEOLUT system. The beacon test signals used to assess this
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parameter do not include beacon messages which collide with each other.
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T-4
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MSG GEOLUT Channel Capacity
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Assess the capability of the GEOSAR system to handle multiple simultaneously
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active distress beacons in a single 406 MHz channel. This parameter is assessed by
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generating traffic loads which include beacon messages which collide with each other.
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T-5
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Impact of Interference
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Monitor the band for the presence of interference while the tests are being performed,
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in order to understand any anomalies in the results and to illustrate the ability of the
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GEOSAR system to provide valid messages in the presence of interference and noise
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in the frequency bands used by the MSG GEOSAR system.
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T-6
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Impact of Interference From LEOSAR Satellites
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Assess the impact of interference from LEOSAR satellite downlink signals on the
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ability of the GEOLUT to produce valid and confirmed alert messages.
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T-7
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MSG GEOLUT Network Performance
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To verify that although at any given time some GEOLUTs may be affected by
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interference from the LEOSAR system, expected GEOSAR alerts will be reliably
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provided by other GEOLUTs in the MSG ground segment.
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T-8
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Processing Anomalies
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Assess the performance of the GEOLUT in respect of the production of processing
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anomalies.
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T-9
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MSG Coverage
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Estimate the geographic coverage of the MSG GEOSAR system.
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- END OF SECTION 2 -
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||
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R11OCT03
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3 - 1
|
||
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||
3.
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||
MSG PERFORMANCE EVALUATION METHODOLOGY
|
||
3.1
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||
General Evaluation Methodology
|
||
All participants in the MSG GEOSAR performance evaluation programme are requested to
|
||
conduct their testing and evaluation in accordance with the common set of guidelines and
|
||
procedures as defined below.
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||
a.
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||
France is responsible for scheduling, in conjunction with the GEOLUT operators, all
|
||
the tests that require the support of the beacon simulator.
|
||
b.
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||
Prior to conducting any tests that do not require the simulator, the participating
|
||
GEOLUT operators should liaise with France to confirm that there are no reported
|
||
problems with the satellite which could affect test results.
|
||
c.
|
||
Each GEOLUT operator should produce an MSG GEOSAR Performance Evaluation
|
||
Report in the format described at Annex A.
|
||
d.
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||
Distress alerts from operational beacons generated by GEOLUTs participating in the
|
||
MSG evaluation programme should not be released into the Cospas-Sarsat System
|
||
until the respective GEOLUT operator has confirmed that the GEOLUT does not
|
||
produce processing anomalies.
|
||
________________________________________________________________________
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||
Every effort should be made to ensure that the use of real or simulated beacon signals in
|
||
support of the MSG Performance Evaluation Plan will not generate distress alert messages
|
||
which might be interpreted in the existing LEOSAR and GEOSAR Systems as real alerts.
|
||
_________________________________________________________________________
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||
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R11OCT03
|
||
3 - 2
|
||
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||
3.2
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Detailed Description of Objectives
|
||
This section provides the following for each objective of the MSG GEOSAR Performance
|
||
Evaluation Programme:
|
||
a.
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||
test procedures,
|
||
b.
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||
data collection requirements, and
|
||
c.
|
||
data reduction/analysis requirements.
|
||
To simplify the testing and to reduce the number of 406 MHz test transmissions, test
|
||
procedures have been developed which share test transmissions. For example the output
|
||
produced by the GEOLUT resulting from the test transmissions for test T-1, is also used for
|
||
evaluating the performance of the GEOLUT in respect of the time to produce valid and
|
||
confirmed messages (T-2), and frequency measurement accuracy performance (T-3).
|
||
To ensure that the alert messages generated by the GEOLUTs can be correlated to the test
|
||
signal transmissions, GEOLUT operators should confirm that the time of day setting in the
|
||
GEOLUT is correct before conducting each test.
|
||
3.2.1 T-1:
|
||
Processing Threshold, System Margin, and Beacon Message Processing
|
||
Performance
|
||
The processing threshold, processing performance and the system margin are "figures of
|
||
merit" of the GEOLUT.
|
||
Processing Threshold
|
||
The processing threshold is the value of the minimum carrier to noise density ratio (C/No) in
|
||
dBHz at the GEOLUT processor for which the GEOLUT is able to produce a valid message
|
||
for each beacon event 99% of the time (the lower this value the more sensitive the
|
||
GEOLUT).
|
||
System Margin
|
||
The system margin is the difference between a nominal beacon, with an EIRP of 37 dBm, and
|
||
a beacon operating at the GEOLUT threshold.
|
||
Valid Message Processing Performance
|
||
The processing performance requirement documented in C/S T.009 is that GEOLUTs should
|
||
be capable of producing valid messages within 5 minutes of beacon activation 95% of the
|
||
time, for all beacon signals whose C/No as measured at the GEOLUT is greater than
|
||
26 dB-Hz. This test will determine the C/No, for which the MSG GEOLUT can produce a
|
||
valid message for each beacon event within 5 minutes of beacon activation 95% of the time.
|
||
Long Message Processing Performance
|
||
At present Cospas-Sarsat has no GEOLUT specification requirement in respect of producing
|
||
complete and confirmed long messages. Nevertheless, with the increased use of location
|
||
protocol beacons using the long message format, it is necessary to assess the MSG system
|
||
performance in this regard.
|
||
|
||
R11OCT03
|
||
3 - 3
|
||
|
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3.2.1.1
|
||
Methodology and Data Collection
|
||
This test assesses the GEOLUT performance in respect of its ability to produce single valid,
|
||
complete and confirmed complete distress beacon messages as a function of the beacon
|
||
power transmitted in the direction of the MSG satellite (beacon EIRP).
|
||
A beacon simulator is used to replicate distress beacons that transmit long format messages at
|
||
specific EIRPs, for a duration necessary to transmit 20 bursts for each beacon ID. Hereafter
|
||
the term “beacon event” is used to describe a beacon being active for a period of time. The
|
||
test is conducted by transmitting 200 beacon events for each EIRP, whilst ensuring that
|
||
signals from individual beacon events do not overlap in time and frequency with the signals
|
||
from other beacon events. The output of the GEOLUT is monitored and the information
|
||
identified in Table E-1 is recorded. The procedure is repeated at EIRP values ranging from
|
||
35 dBm to 28 dBm, in one dB increments.
|
||
Performance of this test requires the following steps.
|
||
a.
|
||
Use a beacon simulator as a set of controlled test beacons with a variable output
|
||
EIRP.
|
||
b.
|
||
Program the simulator to provide different long format beacon identification codes for
|
||
each beacon event. The test scripts used for this test are provided at Annex B,
|
||
Table B-1.
|
||
c.
|
||
Calibrate the beacon simulator output EIRP and carrier frequency (to an accuracy of
|
||
0.2 Hz) to confirm the technical characteristics of the transmitted signals.
|
||
d.
|
||
To avoid interference to the 406 MHz channels currently active for operational use,
|
||
ensure that the simulator does not transmit in the channels used for operational
|
||
beacons.
|
||
e.
|
||
Set the simulator EIRP to 35 dBm in the direction of the MSG satellite.
|
||
f.
|
||
Transmit the 200 beacon events provided at Table B-1 (each event consists of the
|
||
same beacon message transmitted 20 times), ensuring that individual beacon
|
||
transmissions do not interfere with each other. To eliminate any potential interference
|
||
from LEOSAR satellite downlinks, this test shall be scheduled to ensure that test
|
||
signals are not transmitted when MSG GEOLUTs are in the footprint of a Cospas-
|
||
Sarsat LEOSAR satellites.
|
||
g.
|
||
Collect the data produced by the GEOLUT for each beacon event as described at
|
||
Annex E (note that this data will be analysed to provide the results for this test
|
||
objective, as well as for objectives T-2 and T-3).
|
||
h.
|
||
Repeat the process at the EIRP values listed at Table 3-1, using the associated test
|
||
scripts described at Table B-1.
|
||
|
||
R11OCT03
|
||
3 - 4
|
||
|
||
3.2.1.2
|
||
Data Reduction, Analysis and Results
|
||
For each set of 200 beacon events transmitted at a given EIRP as recorded at Annex E
|
||
Table E-1:
|
||
a.
|
||
Calculate the probability of:
|
||
(i) producing at least one valid message for each beacon event as follows:
|
||
d EIRP
|
||
he selecte
|
||
itted at t
|
||
nts transm
|
||
beacon eve
|
||
number of
|
||
essage
|
||
ne valid m
|
||
at least o
|
||
produced
|
||
ich GEOLUT
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
(ii) producing at least one valid message within 5 minutes of beacon activation as
|
||
follows:
|
||
d EIRP
|
||
he selecte
|
||
itted at t
|
||
nts transm
|
||
beacon eve
|
||
number of
|
||
tion
|
||
of activa
|
||
in
|
||
ssage with
|
||
a valid me
|
||
produced
|
||
ich GEOLUT
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
min
|
||
|
||
(iii) producing at least one complete beacon message as follows:
|
||
d EIRP
|
||
he selecte
|
||
itted at t
|
||
nts transm
|
||
beacon eve
|
||
number of
|
||
e
|
||
ong messag
|
||
complete l
|
||
a correct
|
||
produced
|
||
ich GEOLUT
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
(iv) producing a confirmed complete beacon message as follows:
|
||
d EIRP
|
||
he selecte
|
||
itted at t
|
||
nts transm
|
||
beacon eve
|
||
number of
|
||
sage
|
||
e long mes
|
||
a complet
|
||
to confirm
|
||
was able
|
||
ich GEOLUT
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
b.
|
||
Calculate the C/No at the GEOLUT processor corresponding to each EIRP. Note that
|
||
this is a calculated theoretical value of C/No, not the value measured by the
|
||
GEOLUT.
|
||
c.
|
||
Record the results of the calculations above in sample Table 3-1.
|
||
d.
|
||
Using the data from Table 3-1, produce graphs of the results as depicted at Figure 3-1.
|
||
|
||
R11OCT03
|
||
3 - 5
|
||
|
||
EIRP
|
||
from
|
||
simulator
|
||
(dBm)
|
||
Calculated
|
||
C/No at
|
||
GEOLUT
|
||
(dBHz)
|
||
Number of
|
||
Beacon Events
|
||
Used (Valid Msg
|
||
Sample Set)
|
||
Number of Beacon Events for which
|
||
Probability of
|
||
Valid
|
||
Message
|
||
Probability of
|
||
Valid Message
|
||
within 5 Min
|
||
Valid Message was
|
||
Produced
|
||
Valid Message
|
||
was Produced
|
||
within 5 Min
|
||
28.0
|
||
29.0
|
||
30.0
|
||
31.0
|
||
32.0
|
||
33.0
|
||
34.0
|
||
35.0
|
||
|
||
|
||
1.00
|
||
1.00
|
||
EIRP
|
||
from
|
||
simulator
|
||
(dBm)
|
||
Number of
|
||
Beacon Events
|
||
Used
|
||
(Complete Msg
|
||
Sample Set)
|
||
Number of Beacon
|
||
Events Used
|
||
(Confirmed
|
||
Complete Msg
|
||
Sample Set)
|
||
Number of Beacon
|
||
Events for which a
|
||
Complete Message was
|
||
Produced
|
||
Number of Beacon
|
||
Events for which a
|
||
Confirmed Complete
|
||
Message was
|
||
Produced
|
||
Probability of
|
||
Complete /
|
||
Confirmed
|
||
Complete Msg
|
||
28.0
|
||
29.0
|
||
30.0
|
||
31.0
|
||
32.0
|
||
33.0
|
||
34.0
|
||
35.0
|
||
|
||
|
||
1.00
|
||
1.00 / 1.00
|
||
Table 3-1: Sample Table for Analysed Results for Objective T-1
|
||
|
||
R11OCT03
|
||
3 - 6
|
||
|
||
Figure 3-1: Graphs Depicting Processing Threshold, System Margin, Valid
|
||
Message and Complete Long Message Processing Performance
|
||
All cases where the GEOLUT was not able to produce a valid message for a beacon event
|
||
should be analysed to determine if extraordinary external factors (e.g. interference) could
|
||
have caused the GEOLUT not to detect the beacon. If extraordinary external factors caused
|
||
the GEOLUT to miss a beacon event, the event should be removed from the statistics and an
|
||
explanation provided in the report.
|
||
3.2.2 T-2: Time to Produce Valid, Complete and Confirmed Messages
|
||
Processing Threshold and System Margin
|
||
C/No
|
||
EIRP
|
||
37 dBm
|
||
Processing Threshold
|
||
System
|
||
Margin
|
||
1.0
|
||
.99
|
||
.98
|
||
.97
|
||
.96
|
||
Probability of Valid Message
|
||
Valid Message Processing Performance
|
||
C/No
|
||
EIRP
|
||
Processing Performance
|
||
1.0
|
||
.99
|
||
.98
|
||
.97
|
||
.96
|
||
.95
|
||
Probability of Valid Message Within 5 min
|
||
Long Message Processing Performance
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete
|
||
Single Complete
|
||
1.0
|
||
.99
|
||
.98
|
||
.97
|
||
.96
|
||
.95
|
||
Probability of Successful Message Processing
|
||
|
||
R11OCT03
|
||
3 - 7
|
||
|
||
This test assesses how long it takes GEOLUTs operating with the MSG satellite to produce
|
||
valid beacon messages, complete long messages, and confirmed complete long messages.
|
||
This information will be used to validate message processing requirements for GEOLUTs
|
||
which operate with the MSG satellite, and to determine a figure of merit for the number of
|
||
bursts required to successfully process a message.
|
||
3.2.2.1
|
||
Methodology and Data Collection
|
||
For simplicity this test is conducted by analysing the data collected for test T-1 (Threshold).
|
||
Note that the T-1 test scenario is specifically designed not to generate beacon bursts which
|
||
overlap in time and frequency. Consequently, for operational beacon events, the times to
|
||
produce valid, complete, and the time to confirm complete messages may differ from those
|
||
determined during this test.
|
||
The following test methodology and data collection requirements apply:
|
||
a.
|
||
Note the EIRP and 15 Hex ID for each beacon event.
|
||
b.
|
||
For each beacon event note the date/time that the GEOLUT produced:
|
||
(i)
|
||
the first valid message;
|
||
(ii)
|
||
the first complete message; and
|
||
(iii) the first confirmation of the complete message with an independent integration
|
||
process.
|
||
c.
|
||
Record the data collected above in tabular format as described at Annex E. The table
|
||
should have an entry for each beacon event at each EIRP.
|
||
3.2.2.2
|
||
Data Reduction, Analysis and Results
|
||
a.
|
||
For each EIRP calculate the average time to:
|
||
(i) produce valid messages (ATVM), as follows:
|
||
produced
|
||
id message
|
||
st one val
|
||
ich at lea
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
sage
|
||
valid mes
|
||
to produce
|
||
or GEOLUT
|
||
on event f
|
||
st in beac
|
||
first bur
|
||
time after
|
||
ATVM
|
||
=
|
||
(ii) produce complete messages (ATCM), as follows:
|
||
ed
|
||
age produc
|
||
plete mess
|
||
st one com
|
||
ich at lea
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
message
|
||
complete
|
||
to produce
|
||
or GEOLUT
|
||
on event f
|
||
st in beac
|
||
first bur
|
||
time after
|
||
ATCM
|
||
=
|
||
(iii)confirm a complete messages (ATCCM), as follows:
|
||
nfirmed
|
||
age was co
|
||
plete mess
|
||
st one com
|
||
ich at lea
|
||
nts for wh
|
||
beacon eve
|
||
number of
|
||
message
|
||
complete
|
||
to confirm
|
||
or GEOLUT
|
||
on event f
|
||
st in beac
|
||
first bur
|
||
time after
|
||
ATCCM
|
||
=
|
||
|
||
R11OCT03
|
||
3 - 8
|
||
|
||
b.
|
||
In addition, for each EIRP calculate the standard deviation for the time to produce
|
||
valid, complete and confirmed complete messages.
|
||
c.
|
||
For each EIRP determine the time (duration) required for the GEOLUT to provide
|
||
95% and 98% of valid, complete, and confirmed complete messages. These values
|
||
are determined by normalising the time values by removing the time bias resulting
|
||
from the requirement to stagger the start times of each beacon event. The normalised
|
||
values are analysed to identify how long the GEOLUT required to produce the 95th
|
||
and 98th percentile for valid, complete, and confirmed messages. If the 95th or 98th
|
||
percentile was not achieved for any given category, this should be designated as Not
|
||
Available (N/A) in the appropriate cell of the table.
|
||
d.
|
||
Record the results of the above in sample Table 3-2.
|
||
e.
|
||
Using the data from Table 3-2, produce graphs of the results as depicted in Figure 3-2.
|
||
EIRP
|
||
(dBm)
|
||
C/No
|
||
(dBHz)
|
||
ATVM
|
||
(Sec)
|
||
Standard
|
||
Deviation of
|
||
ATVM
|
||
ATCM
|
||
(Sec)
|
||
Standard
|
||
Deviation of
|
||
ATCM
|
||
ATCCM
|
||
(Sec)
|
||
Standard
|
||
Deviation of
|
||
ATCCM
|
||
28.0
|
||
29.0
|
||
.
|
||
.
|
||
.
|
||
35.0
|
||
EIRP
|
||
(dBm)
|
||
C/No
|
||
(dBHz)
|
||
95th Percentile
|
||
98th Percentile
|
||
Valid Msg
|
||
(Sec)
|
||
Complete
|
||
Msg (Sec)
|
||
Confirmed
|
||
Msg (Sec)
|
||
Valid Msg
|
||
(Sec)
|
||
Complete
|
||
Msg (Sec)
|
||
Confirmed Msg
|
||
(Sec)
|
||
28.0
|
||
29.0
|
||
.
|
||
.
|
||
.
|
||
35.0
|
||
Table 3-2:
|
||
Sample Table for Analysed Results for Objective T-2
|
||
|
||
R11OCT03
|
||
3 - 9
|
||
|
||
Figure 3-2: Graphs Depicting Message Production Times
|
||
Average Time to Produce Valid, Complete and Confirmed Complete Messages
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete (ATCCM)
|
||
Complete (ATCM)
|
||
|
||
|
||
Seconds After First Burst of Beacon Event
|
||
|
||
|
||
Number of Bursts Required
|
||
Valid (ATVM)
|
||
95th Percentile to Produce Valid, Complete and Confirmed Complete Messages
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete
|
||
Complete
|
||
|
||
|
||
Seconds After First Burst of Beacon Event
|
||
|
||
|
||
Number of Bursts Required
|
||
Valid
|
||
98th Percentile to Produce Valid, Complete and Confirmed Complete Messages
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete
|
||
Complete
|
||
|
||
|
||
Seconds After First Burst of Beacon Event
|
||
|
||
|
||
Number of Bursts Required
|
||
Valid
|
||
|
||
R11OCT03
|
||
3 - 10
|
||
|
||
3.2.3 T-3: Carrier Frequency Measurement Accuracy
|
||
The purpose of this objective is to assess how accurately the beacon carrier frequency can be
|
||
measured by the MSG GEOSAR / GEOLUT system. This is accomplished by comparing the
|
||
beacon's carrier frequency for each valid message as measured by the GEOLUT with the
|
||
known frequency value for the same beacon, provided by the beacon simulator operator. The
|
||
current GEOLUT specification (C/S T.009) requires a frequency measurement accuracy of
|
||
2 Hz.
|
||
3.2.3.1
|
||
Methodology and Data Collection
|
||
For simplicity, this test is conducted by analysing the data collected for test T-1. For each
|
||
beacon event note the frequency measurement provided by the GEOLUT associated with the
|
||
first valid message produced, and record this information as described at Annex E.
|
||
The measured frequency should be corrected by the GEOLUT, as possible, to account for any
|
||
calibration that would normally be performed during real GEOLUT operations (e.g. if the
|
||
GEOLUT includes features for assessing and correcting frequency measurements by applying
|
||
calibration correction factors, these features should be activated).
|
||
3.2.3.2
|
||
Data Reduction, Analysis, and Results
|
||
Using the data recorded at Annex E the mean and standard deviation of the frequency
|
||
differences for each EIRP should be calculated and recorded as indicated in sample Table 3-3
|
||
and graphed as depicted at Figure 3-3. Measurements which have large differences may be
|
||
removed from the data set if the measurement error can be explained by a known
|
||
phenomenon which degraded the GEOLUT's ability to produce a valid measurement.
|
||
EIRP
|
||
(dBm)
|
||
Calculated C/No at
|
||
GEOLUT
|
||
(dBHz)
|
||
Avg Freq Measurement Error
|
||
(Hz rounded to 1 decimal place)
|
||
Std Deviation of Error
|
||
(Hz)
|
||
28.0
|
||
.
|
||
.
|
||
35.0
|
||
Table 3-3:
|
||
Sample Table for Analysed Results for Objective T-3
|
||
|
||
R11OCT03
|
||
3 - 11
|
||
|
||
Figure 3-3:
|
||
Graphs Depicting Frequency Measurement Accuracy Performance
|
||
3.2.4 T-4: MSG GEOLUT Channel Capacity
|
||
The definition of capacity in Cospas-Sarsat GEOSAR systems is the number of 406 MHz
|
||
distress beacons operating simultaneously in the field of view of a GEOSAR satellite, that
|
||
can be successfully processed by the System to provide a valid beacon message, under
|
||
nominal conditions, within 5 minutes of beacon activation 95% of the time, and the number
|
||
of beacons that can be successfully processed within 10 minutes of beacon activation 98% of
|
||
the time. The applicable nominal conditions are described in document C/S T.012, Cospas-
|
||
Sarsat 406 MHz Frequency Management Plan, except that the uplink EIRP will be set to
|
||
34 dBm.
|
||
3.2.4.1
|
||
Methodology and Data Collection
|
||
The MSG GEOSAR channel capacity is determined by generating traffic loads equivalent to
|
||
known numbers of simultaneously active long format beacons in a Cospas-Sarsat 406 MHz
|
||
channel. The time required for the GEOLUT to produce a valid beacon message, complete
|
||
message and confirm a complete message for each beacon event is recorded. The number of
|
||
simultaneously occurring beacon events is changed and the time required for the GEOLUT to
|
||
produce valid, complete and complete confirmed messages are calculated and recorded for
|
||
the new 406 MHz traffic load.
|
||
The test scripts transmitted by the beacon simulator should conform to the nominal
|
||
conditions detailed in document C/S T.012, with the exception that the uplink EIRP will be
|
||
34 dBm. Specifically, the test shall replicate a number of beacon messages overlapping in
|
||
time and frequency commensurate with the number of simultaneously active beacons.
|
||
Further, the beacon events used in the test script shall also replicate the beacon burst
|
||
repetition period defined in document C/S T.001 (406 MHz beacon specification). The test
|
||
shall be scheduled to avoid any potential interference caused by Cospas-Sarsat LEOSAR
|
||
satellite downlink transmissions.
|
||
The test will replicate scenarios of 15, 20, 25 and 30 simultaneously active beacons.
|
||
|
||
|
||
…
|
||
|
||
EIRP
|
||
Avg Freq Measurement Error
|
||
(Hz)
|
||
Standard Deviation Measurement Error
|
||
(Hz)
|
||
|
||
|
||
…
|
||
|
||
EIRP
|
||
|
||
R11OCT03
|
||
3 - 12
|
||
|
||
Performance of this test requires the following steps.
|
||
a.
|
||
A beacon simulator test script is developed which replicates 15 simultaneously active
|
||
beacons, with each beacon event having a unique ID. The transmitted signals for all
|
||
beacon events shall conform to the nominal conditions stated in the in the Cospas-
|
||
Sarsat 406 MHz Frequency Management Plan (C/S T.012), except that the uplink
|
||
power will be set to 34 dBm. The test signals will be transmitted with a carrier
|
||
frequency of 406.061 MHz. Since the distribution of beacon event start times and
|
||
transmit frequencies shall be in accordance with the nominal conditions described
|
||
document C/S T.012, the test script will include instances where beacon bursts
|
||
overlap in time and frequency. Each beacon event shall replicate a beacon being
|
||
active for a 15 minute period.
|
||
b.
|
||
Ensuring that the GEOLUTs will not be in the downlink footprint of a Cospas-Sarsat
|
||
LEOSAR satellite, the test script is transmitted.
|
||
c.
|
||
For each beacon event the time that the GEOLUT produced the first valid message,
|
||
first complete message and first confirmed complete message should be recorded in
|
||
the tabular format provided at Annex F.
|
||
d.
|
||
Repeat test with a different test script which also replicates 15 active beacons, until 10
|
||
different test scripts have been transmitted.
|
||
e.
|
||
Repeat the process above for scenarios in which the beacon simulator replicates 20,
|
||
25, and 30 simultaneously active beacons.
|
||
3.2.4.2
|
||
Data Reduction, Analysis and Results
|
||
Using the data collected at Annex F, Table 3-4 should be completed for each simulated traffic
|
||
load (e.g. the 10 repetitions of the test script for 15 active beacons are consolidated to provide
|
||
the data in a single row of the table).
|
||
Channel: 406.061
|
||
# of Active
|
||
Bcn Events
|
||
% Valid Msg
|
||
within 5 Min
|
||
% Valid Msg
|
||
within10 Min
|
||
% Valid Msg
|
||
within 15 Min
|
||
% Confirmed
|
||
Complete Msg within
|
||
15 Min
|
||
|
||
|
||
Table 3-4: Sample Table for Capacity Statistics
|
||
From the data in Table 3-4, the percentage of beacon events which produced valid messages
|
||
within 5, 10 and 15 minutes of the start of the beacon event, and also the percentage of
|
||
confirmed complete messages, should be graphed against the respective beacon channel
|
||
|
||
R11OCT03
|
||
3 - 13
|
||
|
||
population as indicated at Figure 3-4. As described below, the capacity of the channel is
|
||
determined by evaluating the number of active beacons corresponding to the 95th percentile
|
||
of the 5 minute curve and the 98th percentile of the 10 minute curve. Since the capacity of the
|
||
channel must satisfy both the 5 and 10 minute criteria, the lowest of these two figures is the
|
||
channel capacity.
|
||
Figure 3-4: Graph Depicting MSG GEOSAR Capacity
|
||
In the fictitious example above, the 0.95 probability in 5 minutes would be the most stringent
|
||
criteria, and, therefore, defines the capacity as being approximately 26.5 active beacons.
|
||
3.2.4.3
|
||
Interpretation, Conclusion and Recommendation
|
||
The results of these tests will provide an estimate of the capacity a single channel in the MSG
|
||
GEOSAR system. It is recommended that these results be used to validate the GEOLUT
|
||
capacity models being developed for the 406 MHz Frequency Management Plan.
|
||
3.2.5 T-5: Impact of Interference
|
||
The purpose of this objective is to determine the ability of the GEOSAR system to provide
|
||
valid messages in the presence of interference and noise. In view of the specialized test
|
||
equipment required to conduct this objective, not all MSG GEOLUT operators need
|
||
participate, but as a minimum one operator should monitor and report the impact of
|
||
interference in accordance with these procedures.
|
||
3.2.5.1
|
||
Methodology and Data Collection
|
||
This objective will use both real alerts and controlled test beacons to determine the impact of
|
||
actual interferers seen in the GEOSAR field of view when interference is present. It will also
|
||
0.94
|
||
0.95
|
||
0.96
|
||
0.97
|
||
0.98
|
||
0.99
|
||
1.0
|
||
5 Minute Valid Msg Curve
|
||
10 Minute Valid Msg Curve
|
||
15 Minute Valid Msg Curve
|
||
15 Minute Confirmed
|
||
Complete Msg Curve
|
||
Probability
|
||
|
||
|
||
Number of Simultaneously Active Beacons Per
|
||
Channel
|
||
|
||
R11OCT03
|
||
3 - 14
|
||
|
||
examine the relationship between the characteristics of the interfering signals and any
|
||
changes in the production of valid messages.
|
||
The following methodology should be used.
|
||
a.
|
||
Characterize the interference by using a spectrum analyser and a data storage device
|
||
to permit detailed analysis of the interfering signal at a later time than its occurrence.
|
||
The following test set up could be used (see Figure 3-5):
|
||
b.
|
||
Monitor the GEOSAR band using the spectrum analyser. Record the output in a
|
||
storage device for later detailed analysis. Photographs, data plots, or spectrographs
|
||
could be used for this purpose.
|
||
c.
|
||
When interference is detected the following parameters concerning the interfering
|
||
signal should be collected.
|
||
i) The identification of the GEOLUT.
|
||
ii) Time of occurrence and the duration of the interfering signal.
|
||
iii) Spectral occupancy.
|
||
iv) Signal strength.
|
||
v) Time patterns (e.g. on/off versus continuous, sweeping versus constant, etc.).
|
||
vi) Nature of modulation (analogue versus digital).
|
||
MSG
|
||
SATELLITE
|
||
SIGNAL
|
||
MSG GEOLUT
|
||
PROCESSOR
|
||
SPECTRUM
|
||
ANALYZER
|
||
STORAGE
|
||
DEVICE
|
||
ALERT
|
||
MESSAGES
|
||
INTERFERER
|
||
CHARACTERIZATION
|
||
DATA
|
||
PHOTOGRAPHS, PLOTS,
|
||
OR SPECTOGRAPHS
|
||
Figure 3-5: Test Set-up for Interference Evaluation
|
||
|
||
R11OCT03
|
||
3 - 15
|
||
|
||
vii) Location of the interferer (if known).
|
||
During periods of interference the production of valid messages by the GEOSAR
|
||
processor should be evaluated. Any loss of messages, the production of invalid
|
||
messages or increases in the message transfer time should be noted.
|
||
3.2.5.2
|
||
Data Reduction, Analysis and Results
|
||
When interference is detected, all GEOSAR messages during the period should be examined
|
||
to determine if there is:
|
||
a.
|
||
a loss of expected messages;
|
||
b.
|
||
a decrease in the number of valid messages from operational and test beacons before
|
||
and after the occurrence of the interference; and
|
||
c.
|
||
an increase in processing anomalies.
|
||
Examine the technical parameters of the interferer and try to relate the impact on the message
|
||
processing to specific characteristics of the interferer. For example, is there a relationship
|
||
between the rate of reduction in valid messages to the interferer's signal strength?
|
||
3.2.6 T-6: Impact of Interference From LEOSAR Satellites
|
||
The purpose of this objective is to analyse and quantify the impact that Cospas-Sarsat
|
||
LEOSAR satellite downlink transmissions have on the ability of MSG GEOLUTs to process
|
||
beacon signals. The test transmissions used for this objective will also be used for objective
|
||
T-7 (MSG GEOLUT network performance).
|
||
3.2.6.1
|
||
Methodology and Data Collection
|
||
The impact of interference from LEOSAR satellite downlink transmissions is assessed by
|
||
activating beacon events at regular intervals over extended periods of time. The performance
|
||
of the GEOLUT to produce valid and confirmed messages for these beacon events during
|
||
periods when the GEOLUT was within, and periods when not within a LEOSAR satellite
|
||
footprint, is analysed. It should be noted that harmful interference does not always occur
|
||
every time GEOLUTs are in the footprint of the LEOSAR satellites, since the level of
|
||
interference is dependant on many factors (e.g. side lobe characteristics of GEOLUT antenna,
|
||
GEOLUT antenna shielding, etc.). Consequently, this test will not categorically confirm
|
||
whether LEOSAR satellites generate harmful interference to the MSG GEOSAR System.
|
||
However, the test may provide sufficient information to determine whether additional tests on
|
||
the matter will be required.
|
||
|
||
R11OCT03
|
||
3 - 16
|
||
|
||
Performance of this test requires the following steps.
|
||
a.
|
||
The beacon simulator is programmed to transmit a new beacon event, each with an
|
||
EIRP of 37 dBm every 10 minutes over a 48 hour period. Each beacon event shall
|
||
have a unique ID, transmit long format messages and shall be active for 20 minutes.
|
||
The burst repetition interval for each beacon event shall be implemented in a manner
|
||
which ensures that at least 10 bursts from each event do not collide with bursts from
|
||
other events.
|
||
b.
|
||
The output of the GEOLUT should be monitored and the time required for the
|
||
GEOLUT to produce the first valid, complete, and confirmed complete message for
|
||
each beacon event shall be noted. Also, for each beacon event it should be noted
|
||
whether the GEOLUT was in the footprint of a LEOSAR satellite during the time
|
||
between beacon activation and the production of the first valid message, and the C/No
|
||
measured by the GEOLUT for the first valid message of each beacon event. The
|
||
results shall be recorded in the format provided at Annex G.
|
||
3.2.6.2
|
||
Data Reduction, Analysis and Results
|
||
From the data collected, the following shall be provided.
|
||
a.
|
||
A histogram in 100 second intervals (as depicted at Figure 3-6), which provides the
|
||
number of beacon events for which the GEOLUT was able to produce the first valid
|
||
message for a beacon event. As indicated in the example, the histogram should report
|
||
separately beacon events which occurred when the GEOLUT was in the footprint of a
|
||
LEOSAR satellite and those which occurred for which there was no possibility of
|
||
LEOSAR interference.
|
||
b.
|
||
The graph shall also be annotated to depict the cumulative percentage of beacon
|
||
events for which a valid message was produced.
|
||
c.
|
||
A histogram similar to the one described above, depicting the number of beacon
|
||
events for which the GEOLUT was able to produce confirmed complete messages,
|
||
should be provided.
|
||
d.
|
||
A graph depicting the C/No values covering the 48 hours of the test should also be
|
||
provided.
|
||
e.
|
||
The average and standard deviation of the time required by the GEOLUT to produce
|
||
valid and confirmed complete messages should be provided separately, for:
|
||
(i) beacon events which occurred while the GEOLUT was within the footprint of a
|
||
LEOSAR downlink; and
|
||
(ii) beacon events which occurred while the GEOLUT was not within the footprint of
|
||
a LEOSAR downlink.
|
||
|
||
R11OCT03
|
||
3 - 17
|
||
|
||
Figure 3-6: GEOLUT Valid Message Production Performance
|
||
3.2.7 T-7: MSG GEOLUT Network Performance
|
||
There is a requirement to confirm that the MSG GEOSAR system comprised of the GEOSAR
|
||
satellite and the network of GEOLUTs which track it will provide reliable and timely
|
||
406 MHz alerts even if one or more of the MSG GEOLUTs were unavailable due to
|
||
interference from LEOSAR downlink transmissions.
|
||
3.2.7.1
|
||
Methodology and Data Collection
|
||
The results from objective T-6 from all the participating GEOLUTs is analysed to complete
|
||
the table provided below. For each beacon event the earliest time that any of the GEOLUTs
|
||
produced a valid message and the earliest that any of the GEOLUTs produced a confirmed
|
||
complete message is recorded. Since this test requires consolidating the results from
|
||
|
||
|
||
Seconds x 100(after start of beacon event)
|
||
Number of beacon events for which GEOLUT produced a valid message
|
||
(no possibility of LEOSAR interference prior to first valid message)
|
||
Number of beacon events for which GEOLUT produced a valid message
|
||
(possible LEOSAR interference prior to first valid message)
|
||
Cumulative Probability of valid message (no possibility LEOSAR interference prior to first valid message)
|
||
Cumulative Probability of valid message (possible LEOSAR interference prior to first valid
|
||
message)
|
||
Number of beacon events
|
||
Cumulative Probability
|
||
3-4
|
||
1-2
|
||
0-1
|
||
4-5
|
||
8-9
|
||
2-3
|
||
6-7
|
||
5-6
|
||
7-8
|
||
9-10
|
||
|
||
R11OCT03
|
||
3 - 18
|
||
|
||
objective T-6 from all the participating MSG GEOLUTs, objective T-7 will not be included
|
||
in the performance evaluation reports provided by individual GEOLUT operators.
|
||
Beacon ID
|
||
Time to Produce
|
||
Valid Msg
|
||
GEOLUT which
|
||
Produced Valid
|
||
Msg
|
||
Time to Produce
|
||
Confirmed
|
||
Complete Msg
|
||
GEOLUT which
|
||
Produced
|
||
Confirmed
|
||
Complete Msg
|
||
Table 3-5: Sample Table of MSG GEOLUT Network Performance
|
||
3.2.7.2
|
||
Data Reduction, Analysis and Results
|
||
From the data collected, the following shall be provided.
|
||
a.
|
||
A histogram, with 100 second intervals, depicting the number of beacon events for
|
||
which valid and confirmed complete messages were produced, and the cumulative
|
||
probabilities of valid and confirmed complete messages (as provided at Figure 3-7).
|
||
b.
|
||
The mean time and standard deviation for the MSG GEOSAR system to produce
|
||
valid and confirmed complete messages.
|
||
c.
|
||
The probability that the combined network of GEOLUTs would produce a valid
|
||
message within 5 minutes, and within 10 minutes.
|
||
|
||
R11OCT03
|
||
3 - 19
|
||
|
||
Figure 3-7: GEOLUT Network Performance
|
||
3.2.8 T-8: Processing Anomalies (PA)
|
||
This test assesses GEOLUT performance in respect of its ability to suppress the number of
|
||
processing anomalies produced.
|
||
0-1
|
||
4-5
|
||
2-3
|
||
3-4
|
||
1-2
|
||
7-8
|
||
6-7
|
||
8-9
|
||
Number of beacon events
|
||
Cumulative Probability
|
||
Number of beacon events for which one of the MSG GEOLUTs produced the first
|
||
valid message within the time interval
|
||
Number of beacon events for which one of the MSG GEOLUTs produced the first
|
||
confirmed message within the time interval
|
||
Cumulative Probability of the valid message being produced by at least one of the MSG GEOLUTs
|
||
Cumulative Probability of confirmed message being produced by at least one of the MSG GEOLUTs
|
||
Seconds x 100(after start of beacon event)
|
||
9-10
|
||
5-6
|
||
|
||
|
||
R11OCT03
|
||
3 - 20
|
||
|
||
3.2.8.1
|
||
Methodology and Data Collection
|
||
This test is conducted by monitoring the 406 MHz channel (406.022 MHz) used by Cospas-
|
||
Sarsat reference beacons, and noting instances where the GEOLUT produced valid beacon
|
||
messages which did not correspond to any of the reference beacons in the coverage area of
|
||
the MSG satellite. Since the identifications (IDs) of all reference beacons in view of the
|
||
MSG satellite are known, it can be inferred that beacons detected in the 406.022 MHz
|
||
channel which do not correspond to known reference beacons are processing anomalies. The
|
||
following test methodology and data collection requirements apply:
|
||
a.
|
||
Note the 15 hexadecimal identification of all the reference beacons in the coverage
|
||
area of the MSG satellite.
|
||
b.
|
||
Monitor the 406 MHz channel used by Cospas-Sarsat reference beacons for a 4 week
|
||
period, and note each instance of the GEOLUT producing a processing anomaly. For
|
||
each processing anomaly note the date and time that it was produced by the
|
||
GEOLUT, the 15 Hex ID and the 30 Hex beacon message reported by the GEOLUT,
|
||
and whether there was interference from a LEOSAR satellite at the time the PA was
|
||
produced (an example of the table for collecting this data is provided at Annex H).
|
||
3.2.8.2
|
||
Data Reduction, Analysis and Results
|
||
a.
|
||
Identify those valid messages that were processing anomalies (their 15 Hex ID did not
|
||
correspond to the 15 Hex ID of any of the reference beacons in the coverage area of
|
||
the MSG satellite).
|
||
b.
|
||
For each processing anomaly, determine if the GEOLUT was in the coverage area of
|
||
a LEOSAR satellite at the time the alert was produced. This information will be used
|
||
to develop statistics which will provide an indication of whether LEOSAR
|
||
interference impacts upon GEOLUT processing anomaly performance.
|
||
c.
|
||
For each processing anomaly, attempt to determine the source (i.e. reference beacon)
|
||
of the transmission. This is done by converting the GEOLUT produced message into
|
||
its binary representation, and comparing it with bit-shifted versions of all the
|
||
reference beacons in the MSG coverage area. If the bits of the processing anomaly
|
||
message correspond to 80% or more of a reference beacon message, then it could be
|
||
assumed that the processing anomaly was generated from the GEOLUT processing of
|
||
transmissions from that reference beacon.
|
||
d.
|
||
Record the results in the table provided at Annex H, and copied below:
|
||
15 Hex ID
|
||
Produced by
|
||
GEOLUT
|
||
15 Hex ID of
|
||
Associated
|
||
Reference Beacon
|
||
Beacon Message
|
||
Produced by
|
||
GEOLUT
|
||
(30 Hex)
|
||
Date /
|
||
Time
|
||
LUT in LEO
|
||
Footprint
|
||
(Y/N)
|
||
|
||
R11OCT03
|
||
3 - 21
|
||
|
||
e.
|
||
Calculate the PA rate as a function of beacon bursts in the coverage area of the MSG
|
||
satellite. This is calculated with the following equation:
|
||
f.
|
||
Calculate the PA rate when the GEOLUT is in the footprint of a LEOSAR satellite
|
||
using the following equation.
|
||
3.2.9 T-9: MSG Coverage
|
||
The coverage of the MSG GEOSAR system is evaluated using a combination of:
|
||
a.
|
||
technical tests, in which a beacon is activated for a period of time, during which it
|
||
crosses in or out of the MSG GEOSAR coverage area; and
|
||
b.
|
||
evaluating real beacon alerts detected by the LEOSAR system, and assessing if the
|
||
same alerts were detected by the MSG GEOSAR system.
|
||
3.2.9.1
|
||
Methodology and Data Collection
|
||
Testing Using Beacon Crossing Coverage Area
|
||
A beacon will be mounted on a vessel or vehicle which will be crossing the expected MSG
|
||
GEOSAR coverage area. After the beacon has been activated, the beacon operator will
|
||
record its location as a function of time. MSG GEOLUT operators will monitor the output of
|
||
their GEOLUTs for the test period, and record the times associated with the production of all
|
||
valid messages for the test beacon.
|
||
Evaluating Coverage Area Using Real Beacon Events of Opportunity
|
||
The location and times of real beacon events detected by the LEOSAR system during the
|
||
period of the MSG GEOSAR Performance testing are to be identified. Beacon events located
|
||
within an area enclosed by 80 latitude and longitude should be recorded in the format
|
||
provided at Annex I. The beacon ID and time of each alert in the sample set are to be
|
||
compared against the GEOLUT output to determine if the event was also detected by the
|
||
MSG GEOSAR system.
|
||
|
||
|
||
|
||
|
||
|
||
|
||
Area
|
||
Coverage
|
||
MSG
|
||
in
|
||
Day
|
||
per
|
||
Bursts
|
||
Beacon
|
||
Reference
|
||
of
|
||
Number
|
||
\*
|
||
Observed
|
||
Days
|
||
of
|
||
Number
|
||
PAs
|
||
of
|
||
Number
|
||
Total
|
||
|
||
|
||
|
||
|
||
|
||
|
||
Area
|
||
Coverage
|
||
MSG
|
||
in
|
||
Day
|
||
per
|
||
Bursts
|
||
Beacon
|
||
Reference
|
||
of
|
||
Number
|
||
\*
|
||
Days
|
||
in
|
||
Cov
|
||
LEO
|
||
of
|
||
Duration
|
||
Total
|
||
Cov
|
||
LEO
|
||
during
|
||
PAs
|
||
of
|
||
Number
|
||
Total
|
||
|
||
R11OCT03
|
||
3 - 22
|
||
|
||
3.2.9.2
|
||
Data Reduction, Analysis and Results
|
||
Testing Using Beacon Crossing Coverage Area
|
||
From the data collected, the time that MSG GEOSAR coverage was lost (or began depending
|
||
whether the beacon was moving in or out of coverage) is to be recorded. The movement of
|
||
the beacon during the test period is to be plotted on a map, and the plot is to be annotated to
|
||
depict GEO coverage / no GEO coverage. From the collected data, the estimated latitude and
|
||
longitude of the last valid message detected by the GEOLUT before the beacon left coverage,
|
||
should be provided.
|
||
Evaluating Coverage Area Using Real Beacon Events of Opportunity
|
||
a.
|
||
all the LEOSAR alerts detected during the period of the MSG Performance evaluation
|
||
that satisfy the criteria for inclusion in the sample set should be recorded in the format
|
||
provided at Annex I (i.e., situated within an area enclosed by 80 latitude and
|
||
longitude);
|
||
b.
|
||
each beacon event in the sample set should be checked to determine if it was also
|
||
detected by the MSG GEOLUT, and the results recorded as per Annex I;
|
||
c.
|
||
the beacon events are to be grouped into geographic areas of 10 latitude/longitude
|
||
blocks;
|
||
d.
|
||
for each block, the percentage of LEOSAR beacon events that were also detected by
|
||
the GEOLUT should be calculated and presented as indicated at Table 3-6 below; and
|
||
e.
|
||
the location of each beacon event should be plotted on two maps, one depicting events
|
||
that were detected by both the LEOSAR and GEOLUT, and a separate map depicting
|
||
beacon events detected only by the LEOSAR system.
|
||
Block Location
|
||
Number of
|
||
LEOSAR
|
||
Beacon Events
|
||
Number
|
||
Detected by
|
||
GEOLUT
|
||
% Detected by
|
||
GEOLUT
|
||
Longitude
|
||
Latitude
|
||
0/10w
|
||
0/10n
|
||
10w/20w
|
||
0/10n
|
||
20w/30w
|
||
0/10n
|
||
.
|
||
.
|
||
.
|
||
.
|
||
.
|
||
.
|
||
70e/80e
|
||
70s/80s
|
||
Table 3-6: Sample Table of Coverage Statistics
|
||
- END OF SECTION 3 -
|
||
|
||
R11OCT17.02
|
||
4 - 1
|
||
|
||
4.
|
||
REPORTING GUIDELINES
|
||
Each GEOLUT operator participating in the MSG GEOSAR Performance Evaluation
|
||
Programme shall submit an individual report to the Cospas-Sarsat Secretariat. The report
|
||
should follow the structure described in Annex A, using the same section paragraph
|
||
numbering and annexes.
|
||
The Secretariat will retain the complete reports on file for archival purposes, and will format
|
||
each report into a summarized version for presentation to the Joint Committee. Based upon
|
||
the recommendations of the Joint Committee, a summary report of the performance of the
|
||
MSG System will be produced for the consideration of the Cospas-Sarsat Council.
|
||
- END OF SECTION 4 -
|
||
|
||
R11OCT17.02
|
||
4 - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT17.02
|
||
|
||
________________________________________________________
|
||
ANNEXES TO THE
|
||
COSPAS-SARSAT
|
||
METEOSAT SECOND GENERATION (MSG)
|
||
GEOSAR PERFORMANCE
|
||
EVALUATION PLAN
|
||
_________________________________________________________
|
||
|
||
R11OCT17.02
|
||
|
||
page left blank
|
||
|
||
R11OCT03
|
||
A - 1
|
||
|
||
ANNEX A
|
||
FORMAT OF MSG PERFORMANCE EVALUATION
|
||
REPORTS BY GEOLUT OPERATORS
|
||
A.1
|
||
INTRODUCTION
|
||
Introductory remarks provide information necessary to understand the report. The
|
||
introduction should identify which test objectives were completed and have been reported in
|
||
this document and any known deficiencies with the GEOLUT which could affect the results.
|
||
Furthermore, the introduction shall provide:
|
||
a.
|
||
the dates covered by the test programme;
|
||
b.
|
||
the location of the GEOLUT; and
|
||
c.
|
||
the configuration settings of the GEOLUT which could impact upon its observed
|
||
performance (e.g. the bandwidth settings of the GEOLUT receiver).
|
||
A.2
|
||
SUMMARY OF RESULTS
|
||
This section will provide summary statements concerning the results of each objective. It
|
||
should specifically identify any difficulties experienced with the evaluation programme and
|
||
any recommendations that should be noted by the Joint Committee.
|
||
A.3
|
||
TEST T-1: PROCESSING THRESHOLD, SYSTEM MARGIN AND
|
||
BEACON MESSAGE PROCESSING PERFORMANCE
|
||
A.3.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.3.2 Calculation of C/No
|
||
The calculations converting the EIRP of the simulator, to a C/No value at the GEOLUT
|
||
processor should be provided.
|
||
A.3.3 Test Results
|
||
The GEOLUT data collected for this test should be included as an annex to the report, and
|
||
referenced in this section of the report. In addition, the tables below should be produced
|
||
based on the collected data and provided in this section of the national report.
|
||
|
||
R11OCT03
|
||
A - 2
|
||
|
||
Analysed Data for Test T-1
|
||
EIRP
|
||
from
|
||
simulator
|
||
(dBm)
|
||
Calculated
|
||
C/No at
|
||
GEOLUT
|
||
(dBHz)
|
||
Number of
|
||
Beacon Events
|
||
Used (Valid Msg
|
||
Sample Set)
|
||
Number of Beacon Events for which
|
||
Probability of
|
||
Valid
|
||
Message
|
||
Probability of
|
||
Valid Message
|
||
within 5 Min
|
||
Valid Message was
|
||
Produced
|
||
Valid Message
|
||
was Produced
|
||
within 5 Min
|
||
28.0
|
||
29.0
|
||
30.0
|
||
31.0
|
||
32.0
|
||
33.0
|
||
34.0
|
||
35.0
|
||
|
||
|
||
1.00
|
||
1.00
|
||
EIRP
|
||
from
|
||
simulator
|
||
(dBm)
|
||
Number of
|
||
Beacon Events
|
||
Used
|
||
(Complete Msg
|
||
Sample Set)
|
||
Number of Beacon
|
||
Events Used
|
||
(Confirmed
|
||
Complete Msg
|
||
Sample Set)
|
||
Number of Beacon
|
||
Events for which a
|
||
Complete Message was
|
||
Produced
|
||
Number of Beacon
|
||
Events for which a
|
||
Confirmed Complete
|
||
Message was
|
||
Produced
|
||
Probability of
|
||
Complete /
|
||
Confirmed
|
||
Complete Msg
|
||
28.0
|
||
29.0
|
||
30.0
|
||
31.0
|
||
32.0
|
||
33.0
|
||
34.0
|
||
35.0
|
||
|
||
|
||
1.00
|
||
1.00 / 1.00
|
||
A.3.4 Processing Threshold and Message Processing Performance
|
||
A graph of the results from the tables above should be included (a theoretical example is
|
||
provided herein). The processing threshold value should be highlighted by noting the value
|
||
of C/No corresponding to a 0.99 probability of obtaining a valid message as indicated below.
|
||
Similarly the processing performance is determined from the graph depicting C/No versus
|
||
the probability of producing a valid message within 5 minutes.
|
||
|
||
R11OCT03
|
||
A - 3
|
||
|
||
A.3.5 System Margin
|
||
The calculations converting the threshold value of C/No to the associated EIRP, and the
|
||
resulting system margin should be provided.
|
||
A.3.6 Test Anomalies
|
||
This section should provide information concerning issues which occurred during the test
|
||
which could affect results. If some data was excluded from the results, an explanation should
|
||
be provided.
|
||
A.3.7 Recommendations
|
||
Processing Threshold and System Margin
|
||
C/No
|
||
EIRP
|
||
37 dBm
|
||
Processing Threshold
|
||
System
|
||
Margin
|
||
1.0
|
||
.99
|
||
.98
|
||
.97
|
||
.96
|
||
Probability of Valid Message
|
||
Valid Message Processing Performance
|
||
C/No
|
||
EIRP
|
||
Processing Performance
|
||
1.0
|
||
.99
|
||
.98
|
||
.97
|
||
.96
|
||
.95
|
||
Probability of Valid Message Within 5 min
|
||
Long Message Processing Performance
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete
|
||
Complete
|
||
1.0
|
||
.99
|
||
.98
|
||
.97
|
||
.96
|
||
.95
|
||
Probability of Successful Message Processing
|
||
|
||
R11OCT03
|
||
A - 4
|
||
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
A.4
|
||
TEST T-2: TIME TO PRODUCE VALID, COMPLETE AND CONFIRMED
|
||
MESSAGES
|
||
A.4.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.4.2 Test Results
|
||
The results for this test are obtained by analysing the data that was collected for the T-1 Test.
|
||
A reference should be provided to indicate the annex of the report where this data is
|
||
provided. From the data, the table and graphs described below should be produced and
|
||
included in this section of the report. In addition to the mean time to produce valid, complete
|
||
and confirmed complete messages for each EIRP, the standard deviation for each of these
|
||
statistics should also be calculated and provided.
|
||
EIRP
|
||
(dBm)
|
||
C/No
|
||
(dBHz)
|
||
ATVM
|
||
(Sec)
|
||
Standard
|
||
Deviation of
|
||
ATVM
|
||
ATCM
|
||
(Sec)
|
||
Standard
|
||
Deviation of
|
||
ATCM
|
||
ATCCM
|
||
(Sec)
|
||
Standard
|
||
Deviation of
|
||
ATCCM
|
||
28.0
|
||
29.0
|
||
.
|
||
.
|
||
35.0
|
||
EIRP
|
||
(dBm)
|
||
C/No
|
||
(dBHz)
|
||
95th Percentile
|
||
98th Percentile
|
||
Valid Msg
|
||
(Sec)
|
||
Complete
|
||
Msg (Sec)
|
||
Confirmed
|
||
Msg (Sec)
|
||
Valid Msg
|
||
(Sec)
|
||
Complete
|
||
Msg (Sec)
|
||
Confirmed Msg
|
||
(Sec)
|
||
28.0
|
||
29.0
|
||
.
|
||
.
|
||
35.0
|
||
|
||
R11OCT03
|
||
A - 5
|
||
|
||
A.4.3 Test Anomalies
|
||
Average Time to Produce Valid, Complete and Confirmed Complete Messages
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete (ATCCM)
|
||
Complete (ATCM)
|
||
|
||
|
||
Seconds After First Burst of Beacon Event
|
||
|
||
|
||
Number of Bursts Required
|
||
Valid (ATVM)
|
||
95th Percentile to Produce Valid, Complete and Confirmed Complete Messages
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete
|
||
Complete
|
||
|
||
|
||
Seconds After First Burst of Beacon Event
|
||
|
||
|
||
Number of Bursts Required
|
||
Valid
|
||
98th Percentile to Produce Valid, Complete and Confirmed Complete Messages
|
||
C/No
|
||
EIRP
|
||
Confirmed Complete
|
||
Complete
|
||
|
||
|
||
Seconds After First Burst of Beacon Event
|
||
|
||
|
||
Number of Bursts Required
|
||
Valid
|
||
|
||
R11OCT03
|
||
A - 6
|
||
|
||
This section should provide information concerning issues which occurred during the test
|
||
which could affect results. If some data was excluded from the results, an explanation should
|
||
be provided.
|
||
A.4.4 Recommendations
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
A.5
|
||
TEST T-3: CARRIER FREQUENCY MEASUREMENT ACCURACY
|
||
A.5.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.5.2 Test Results
|
||
The results for this test are obtained by analysing the data that was collected for the T-1 Test,
|
||
to obtain the average frequency measurement error and standard deviation of this error, for
|
||
each EIRP. A reference should be provided to indicate the annex of the report where this
|
||
data is provided. The results of these calculations should be presented in tabular and
|
||
graphical formats as indicated below.
|
||
EIRP
|
||
(dBm)
|
||
Calculated C/No at
|
||
GEOLUT (dBHz)
|
||
Avg Freq Measurement Error
|
||
(Hz rounded to 1 decimal place)
|
||
Std Deviation of Error
|
||
(Hz)
|
||
28.0
|
||
.
|
||
.
|
||
35.0
|
||
|
||
|
||
…
|
||
|
||
EIRP
|
||
Avg Freq Measurement Error
|
||
(Hz)
|
||
Standard Deviation Freq
|
||
Measurement Error
|
||
(Hz)
|
||
|
||
|
||
…
|
||
|
||
EIRP
|
||
|
||
R11OCT03
|
||
A - 7
|
||
|
||
A.5.3 Test Anomalies
|
||
This section should provide information concerning issues which occurred during the test
|
||
which could affect results. If some data was excluded from the results, an explanation should
|
||
be provided.
|
||
A.5.4 Recommendations
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
A.6
|
||
TEST T-4: MSG GEOLUT CHANNEL CAPACITY
|
||
A.6.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.6.2 Test Results
|
||
The GEOLUT data collected for this test should be included as an annex to the report, and
|
||
should be referenced in this section of the report. From the data collected, the table and
|
||
graph depicted below should be provided, and the capacity calculated and reported in this
|
||
section of the report.
|
||
Channel: 406.061
|
||
# of Active
|
||
Bcn Events
|
||
% Valid Msg
|
||
within 5 Min
|
||
% Valid Msg
|
||
within10 Min
|
||
% Valid Msg
|
||
within 15 Min
|
||
% Confirmed
|
||
Complete Msg within
|
||
15 Min
|
||
|
||
|
||
R11OCT03
|
||
A - 8
|
||
|
||
A.6.3 Test Anomalies
|
||
This section should provide information concerning issues which occurred during the test
|
||
which could affect results. If some data was excluded from the results, an explanation should
|
||
be provided.
|
||
A.6.4 Recommendations
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
A.7
|
||
TEST T-5: IMPACT OF INTERFERENCE
|
||
This objective is not accomplished through a controlled test, but rather by monitoring the
|
||
performance of the GEOLUT throughout the period of the entire MSG performance
|
||
evaluation programme, during which time it is anticipated that there will be periods of
|
||
interference. In view of the unstructured nature of this process it is not possible to predict
|
||
what information will be collected, the detailed analysis which will be required, nor define
|
||
the structure for reporting the results in advance.
|
||
406.061 MHz Channel Capacity
|
||
0.94
|
||
0.95
|
||
0.96
|
||
0.97
|
||
0.98
|
||
0.99
|
||
1.0
|
||
5 Minute Valid Msg Curve
|
||
10 Minute Valid Msg Curve
|
||
15 Minute Valid Msg Curve
|
||
15 Minute Confirmed
|
||
Complete Msg Curve
|
||
Probability
|
||
|
||
|
||
Number of Simultaneously Active Beacons Per
|
||
Channel
|
||
|
||
R11OCT03
|
||
A - 9
|
||
|
||
In view of the above, for administrations which participated in this test objective, a
|
||
description of the configuration used to detect and measure interference should be provided.
|
||
In addition, the data collected for this objective should be provided as an annex to the report.
|
||
Finally any data reduction and/or analysis conducted should be described and the results
|
||
reported.
|
||
A.8
|
||
TEST T-6: IMPACT OF INTERFERENCE FROM LEOSAR SATELLITES
|
||
A.8.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.8.2 Test Results
|
||
The GEOLUT data collected for this test should be included as an annex to the report, and
|
||
should be referenced in this section of the report. The following should be provided:
|
||
a.
|
||
histograms / graphs, as provided in the example below, which depict the performance
|
||
of the GEOLUT to produce valid messages during periods when the GEOLUT was in
|
||
the footprint of a LEOSAR satellite prior to the production of a valid message for a
|
||
beacon event and when it was not;
|
||
b.
|
||
the mean and standard deviation for the time to produce valid messages, for both
|
||
sample sets;
|
||
c.
|
||
histograms / graphs, also in the format provided below, which depict the performance
|
||
to produce confirmed complete messages during periods when the GEOLUT was in
|
||
the footprint of a LEOSAR satellite prior to the first valid message, and when it was
|
||
not;
|
||
d.
|
||
the mean and standard deviation for the time to produce confirmed complete
|
||
messages; and
|
||
e.
|
||
a graph depicting the C/No, as measured by the GEOLUT to produce the first valid
|
||
message for each beacon event, plotted against the time since the start of the test (i.e.,
|
||
the horizontal axis of the graph will cover the 48 hour test period).
|
||
With respect to the calculation for the mean and standard deviation, if the GEOLUT did not
|
||
produce a valid or confirmed complete message, the beacon event should not be included in
|
||
the respective sample set, and a note should be provided in the report indicating how many
|
||
such events occurred. For example, the note might indicate that valid messages were not
|
||
produced for 3 beacon events, and confirmed complete messages were not produced for 7
|
||
events.
|
||
|
||
R11OCT03
|
||
A - 10
|
||
|
||
GEOLUT Valid Message Production Performance
|
||
A.8.3 Test Anomalies
|
||
This section should provide information concerning issues which occurred during the test that
|
||
could affect the results. If some data was excluded from the results, an explanation should be
|
||
provided. Specifically, the number of beacon events for which the GEOLUT was not able to
|
||
produce a valid or a confirmed complete message should be provided.
|
||
A.8.4 Recommendations
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
Seconds x 100 (after start of beacon event)
|
||
Number of beacon events for which GEOLUT produced a valid message
|
||
(no possibility of LEOSAR interference prior to first valid message)
|
||
Number of beacon events for which GEOLUT produced a valid message
|
||
(possible LEOSAR interference prior to first valid message)
|
||
Cumulative Probability of valid message (no possibility of LEOSAR interference prior to first valid message)
|
||
Cumulative Probability of valid message (possible LEOSAR interference prior to first valid
|
||
message)
|
||
|
||
|
||
9-10
|
||
Number of beacon events
|
||
Cumulative Probability
|
||
8-9
|
||
7-8
|
||
6-7
|
||
5-6
|
||
4-5
|
||
3-4
|
||
2-3
|
||
1-2
|
||
0-1
|
||
|
||
R11OCT03
|
||
A - 11
|
||
|
||
A.9
|
||
TEST T-7: MSG GEOLUT NETWORK PERFORMANCE
|
||
Since this test requires consolidating the results of objective T-6 from all the participating
|
||
MSG GEOLUTs, objective T-7 will not be included in the performance evaluation reports
|
||
provided by the individual GEOLUT operators. Instead the Joint Committee will produce a
|
||
report for this objective by consolidating the results provided by the participating GEOLUT
|
||
operators for objective T-6.
|
||
A.9.1 Test Results
|
||
The Joint Committee should analyse the data collected for objective T-6 (impact of LEOSAR
|
||
interference), and complete the actions described below.
|
||
a.
|
||
An entry should be made in the format of the table described at Annex G which
|
||
captures the earliest time that any of the MSG GEOLUTs produced a valid message
|
||
for each beacon event, and the earliest time that any of the GEOLUTs produced a
|
||
confirmed complete message for each beacon event.
|
||
b.
|
||
From the table produced by the Joint Committee, a graph (as described at Figure 3.7)
|
||
should be provided, which depicts the performance of the MSG GEOLUT network in
|
||
respect of producing valid and confirmed complete messages.
|
||
c.
|
||
From the consolidated data:
|
||
(i) mean and standard deviation for time required for the network of MSG
|
||
GEOLUTs to produce valid and confirmed messages for each beacon event
|
||
should be calculated and reported;
|
||
(ii) the probability that the network of MSG GEOLUTs would produce valid
|
||
messages within 5 and 10 minutes should be calculated and reported; and
|
||
(iii)the probability that the GEOLUT network produced confirmed complete
|
||
messages should be calculated and reported.
|
||
A.10 TEST T-8: PROCESSING ANOMALIES
|
||
A.10.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.10.2 Test Results
|
||
An entry should be made in the table provided at Annex H (a copy of the format of the table
|
||
is provided below) for each instance when the GEOLUT produced a valid message which
|
||
satisfied both conditions stated below:
|
||
|
||
R11OCT03
|
||
A - 12
|
||
|
||
a.
|
||
the bias frequency calculated by the GEOLUT confirmed the transmission occurred in
|
||
the channel reserved for reference beacons (406.0205 - 406.0235 MHz); and
|
||
b.
|
||
the 15 Hex ID of the valid message produced by the GEOLUT did not match any of
|
||
the 15 Hex IDs of reference beacons operating in the MSG coverage area.
|
||
15 Hex ID
|
||
Produced by
|
||
GEOLUT
|
||
15 Hex ID of
|
||
Associated
|
||
Reference Beacon
|
||
Beacon Message
|
||
Produced by
|
||
GEOLUT
|
||
(30 Hex)
|
||
Date /
|
||
Time
|
||
LUT in LEO
|
||
Footprint
|
||
(Y/N)
|
||
Table for Recording 406 MHz Processing Anomalies (extracted from Annex H)
|
||
A.10.3 Processing Anomaly Rate (PA)
|
||
The PA rate and the PA rate when the GEOLUT was in the footprint of a LEOSAR satellite
|
||
should be calculated and reported.
|
||
A.10.4 Test Anomalies
|
||
This section should provide information concerning issues which occurred during the test
|
||
which could affect results. If some data was excluded from the results, an explanation should
|
||
be provided.
|
||
A.10.5 Recommendations
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
A.11 Test T-9: MSG COVERAGE
|
||
A.11.1 Test Description
|
||
This section should include a statement confirming that the tests were conducted and
|
||
analysed in accordance with C/S R.011, or describe any modifications to the test procedures
|
||
that were required.
|
||
A.11.2 Test Results
|
||
Beacon Crossing Coverage Area
|
||
a.
|
||
A narrative description of the test should provided, indicating the route taken, the
|
||
beacon identification, and the times associated with the activation and deactivation of
|
||
the beacon.
|
||
|
||
R11OCT03
|
||
A - 13
|
||
|
||
b.
|
||
The GEOLUT performance in respect of producing valid messages, as a function of
|
||
time and elevation angle (as indicated below) should be provided.
|
||
c.
|
||
The results provided in the table should be graphically depicted on a map.
|
||
Beacon 15 Hex ID:
|
||
Activation Date / Time:
|
||
De-activation Date / Time:
|
||
Date / Time
|
||
Location (Lat/Long)
|
||
Beacon to Satellite
|
||
Elevation Angle
|
||
Detected by
|
||
GEOLUT (Yes/No)
|
||
Evaluating Coverage Using Real Beacon Events
|
||
a.
|
||
All beacon events detected by the LEOSAR system in the area enclosed by 80 N/S
|
||
and 80 E/W, shall be recorded as per Annex I, and an indication of whether the
|
||
beacon event was also detected by the MSG GEOLUT.
|
||
b.
|
||
Using the data captured at Annex I, beacon events are to be grouped into geographic
|
||
locations of 10 latitude/longitude blocks, and the associated statistics calculated as
|
||
indicated below.
|
||
Block Location
|
||
Number of
|
||
LEOSAR
|
||
Beacon Events
|
||
Number
|
||
Detected by
|
||
GEOLUT
|
||
% Detected by
|
||
GEOLUT
|
||
Longitude
|
||
Latitude
|
||
0/10w
|
||
0/10n
|
||
10w/20w
|
||
0/10n
|
||
20w/30w
|
||
0/10n
|
||
.
|
||
.
|
||
.
|
||
.
|
||
.
|
||
.
|
||
70e/80e
|
||
70s/80s
|
||
c.
|
||
Two maps of the data collected as per Annex I should be produced. One map
|
||
depicting each beacon event that was detected by the LEOSAR and also by the MSG
|
||
GEOLUT, and the second map depicting each beacon event that was only detected by
|
||
the LEOSAR system.
|
||
A.11.3 Test Anomalies
|
||
This section should provide information concerning issues which occurred during the test
|
||
which could affect results. If some data was excluded from the results, an explanation should
|
||
be provided.
|
||
|
||
R11OCT03
|
||
A - 14
|
||
|
||
A.11.4 Recommendations
|
||
Any proposed recommendations resulting from this test should be detailed in this section.
|
||
List of Annexes (electronic copies of annexes to be provided to Secretariat separately)
|
||
Annex A
|
||
GEOLUT Data Collected for Objectives T-1, T-2, and T-3;
|
||
Annex B
|
||
GEOLUT Data Collected for Objective T-4;
|
||
Annex C
|
||
GEOLUT Data Collected for Objective T-6;
|
||
Annex D
|
||
GEOLUT Data Collected for Objective T-8; and
|
||
Annex E
|
||
GEOLUT Data Collected for Objective T-9
|
||
- END OF ANNEX A -
|
||
|
||
R11OCT03
|
||
B - 1
|
||
|
||
ANNEX B
|
||
TEST SCRIPTS FOR OBJECTIVES
|
||
T-1, T-2 AND T-3
|
||
Introduction
|
||
This annex provides a description of the test signals that will be transmitted by the French
|
||
simulator for objectives T-1, T-2 and T-3. In order to transmit the required number of beacon
|
||
events at each EIRP, each script will be comprised of 200 beacon events. A different script
|
||
will be used for each EIRP value. The test script for uplink signals with EIRPs of 28 dBm is
|
||
provided below. The scripts for the other EIRPs will be identical to this example except that
|
||
the beacon event IDs transmitted will be coded with the appropriate EIRP value. Copies of
|
||
the test scripts for EIRP values from 28 to 35 dBm are available from the Cospas-Sarsat
|
||
Secretariat on request.
|
||
Each row in the table represents a single beacon event. Each beacon event is comprised of 20
|
||
beacon bursts with a fixed burst repetition interval of 50 sec. The start time for each beacon
|
||
event is indicated in the table.
|
||
The 15 Hex ID of each beacon event conforms to the following convention:
|
||
9 C 5 C 0 0 X X X 0 0 0 0 X X
|
||
Table B-1: Test Script for Tests T-1, T-2 and T-3
|
||
EIRP 28 dBm To= Year/Month/Time (GMT hour : minute : second) e.g. 2002/08/06:43:22______________________
|
||
15 Hex ID of Bcn Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First Burst
|
||
in Bcn Event
|
||
Tx Freq
|
||
9C5C00001000028
|
||
CE2E000008000147BD4340100002C1
|
||
To
|
||
406.061 MHz –500 Hz
|
||
9C5C00002000028
|
||
CE2E0000100001415E91C0100002C1
|
||
To
|
||
406.064 MHz –500 Hz
|
||
9C5C00003000028
|
||
CE2E000018000143002040100002C1
|
||
To
|
||
406.067 MHz –500 Hz
|
||
9C5C00004000028
|
||
CE2E0000200001452F4C00100002C1
|
||
To
|
||
406.070 MHz –500Hz
|
||
9C5C00005000028
|
||
CE2E00002800014771FD80100002C1
|
||
To + 1
|
||
406.061 MHz –400 Hz
|
||
9C5C00006000028
|
||
CE2E000030000141922F00100002C1
|
||
To + 1
|
||
406.064 MHz –400 Hz
|
||
9C5C00007000028
|
||
CE2E000038000143CC9E80100002C1
|
||
To + 1
|
||
406.067 MHz –400 Hz
|
||
9C5C00008000028
|
||
CE2E0000400001447A8F40100002C1
|
||
To + 1
|
||
406.070 MHz –400Hz
|
||
9C5C00009000028
|
||
CE2E000048000146243EC0100002C1
|
||
To + 2
|
||
406.061 MHz –300 Hz
|
||
9C5C00010000028
|
||
CE2E000080000146D109C0100002C1
|
||
To + 2
|
||
406.064 MHz –300 Hz
|
||
9C5C00011000028
|
||
CE2E0000880001448FB840100002C1
|
||
To + 2
|
||
406.067 MHz –300 Hz
|
||
9C5C00012000028
|
||
CE2E0000900001426C6AC0100002C1
|
||
To + 2
|
||
406.070 MHz –300Hz
|
||
9C5C00013000028
|
||
CE2E00009800014032DB40100002C1
|
||
To + 3
|
||
406.061 MHz –200 Hz
|
||
9C5C00014000028
|
||
CE2E0000A00001461DB700100002C1
|
||
To + 3
|
||
406.064 MHz –200 Hz
|
||
9C5C00015000028
|
||
CE2E0000A8000144430680100002C1
|
||
To + 3
|
||
406.067 MHz –200 Hz
|
||
Fixed Values
|
||
For all Beacon
|
||
Events
|
||
Beacon Event
|
||
Serial 001
|
||
through 200
|
||
Fixed Values
|
||
For all Beacon
|
||
Events
|
||
Transmit EIRP
|
||
|
||
R11OCT03
|
||
B - 2
|
||
|
||
EIRP 28 dBm To= Year/Month/Time (GMT hour : minute : second) e.g. 2002/08/06:43:22______________________
|
||
15 Hex ID of Bcn Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First Burst
|
||
in Bcn Event
|
||
Tx Freq
|
||
9C5C00016000028
|
||
CE2E0000B0000142A0D400100002C1
|
||
To + 3
|
||
406.070 MHz –200Hz
|
||
9C5C00017000028
|
||
CE2E0000B8000140FE6580100002C1
|
||
To + 4
|
||
406.061 MHz –100 Hz
|
||
9C5C00018000028
|
||
CE2E0000C0000147487440100002C1
|
||
To + 4
|
||
406.064 MHz –100 Hz
|
||
9C5C00019000028
|
||
CE2E0000C800014516C5C0100002C1
|
||
To + 4
|
||
406.067 MHz –100 Hz
|
||
9C5C00020000028
|
||
CE2E0001000001438604C0100002C1
|
||
To + 4
|
||
406.070 MHz –100Hz
|
||
9C5C00021000028
|
||
CE2E000108000141D8B540100002C1
|
||
To + 5
|
||
406.061 MHz
|
||
9C5C00022000028
|
||
CE2E0001100001473B67C0100002C1
|
||
To + 5
|
||
406.064 MHz
|
||
9C5C00023000028
|
||
CE2E00011800014565D640100002C1
|
||
To + 5
|
||
406.067 MHz
|
||
9C5C00024000028
|
||
CE2E0001200001434ABA00100002C1
|
||
To + 5
|
||
406.070 MHz
|
||
9C5C00025000028
|
||
CE2E000128000141140B80100002C1
|
||
To + 6
|
||
406.061 MHz +500 Hz
|
||
9C5C00026000028
|
||
CE2E000130000147F7D900100002C1
|
||
To + 6
|
||
406.064 MHz +500 Hz
|
||
9C5C00027000028
|
||
CE2E000138000145A96880100002C1
|
||
To + 6
|
||
406.067 MHz +500 Hz
|
||
9C5C00028000028
|
||
CE2E0001400001421F7940100002C1
|
||
To + 6
|
||
406.070 MHz +500Hz
|
||
9C5C00029000028
|
||
CE2E00014800014041C8C0100002C1
|
||
To + 7
|
||
406.061 MHz +400 Hz
|
||
9C5C00030000028
|
||
CE2E000180000140B4FFC0100002C1
|
||
To + 7
|
||
406.064 MHz +400 Hz
|
||
9C5C00031000028
|
||
CE2E000188000142EA4E40100002C1
|
||
To + 7
|
||
406.067 MHz +400 Hz
|
||
9C5C00032000028
|
||
CE2E000190000144099CC0100002C1
|
||
To + 7
|
||
406.070 MHz +400Hz
|
||
9C5C00033000028
|
||
CE2E000198000146572D40100002C1
|
||
To + 8
|
||
406.061 MHz +300 Hz
|
||
9C5C00034000028
|
||
CE2E0001A0000140784100100002C1
|
||
To + 8
|
||
406.064 MHz +300 Hz
|
||
9C5C00035000028
|
||
CE2E0001A800014226F080100002C1
|
||
To + 8
|
||
406.067 MHz +300 Hz
|
||
9C5C00036000028
|
||
CE2E0001B0000144C52200100002C1
|
||
To + 8
|
||
406.070 MHz +300Hz
|
||
9C5C00037000028
|
||
CE2E0001B80001469B9380100002C1
|
||
To + 9
|
||
406.061 MHz +200 Hz
|
||
9C5C00038000028
|
||
CE2E0001C00001412D8240100002C1
|
||
To + 9
|
||
406.064 MHz +200 Hz
|
||
9C5C00039000028
|
||
CE2E0001C80001437333C0100002C1
|
||
To + 9
|
||
406.067 MHz +200 Hz
|
||
9C5C00040000028
|
||
CE2E0002000001409E6600100002C1
|
||
To + 9
|
||
406.070 MHz +200Hz
|
||
9C5C00041000028
|
||
CE2E000208000142C0D780100002C1
|
||
To + 10
|
||
406.061 MHz +100 Hz
|
||
9C5C00042000028
|
||
CE2E000210000144230500100002C1
|
||
To + 10
|
||
406.064 MHz +100 Hz
|
||
9C5C00043000028
|
||
CE2E0002180001467DB480100002C1
|
||
To + 10
|
||
406.067 MHz +100 Hz
|
||
9C5C00044000028
|
||
CE2E00022000014052D8C0100002C1
|
||
To + 10
|
||
406.070 MHz +100Hz
|
||
9C5C00045000028
|
||
CE2E0002280001420C6940100002C1
|
||
To + 11
|
||
406.061 MHz
|
||
9C5C00046000028
|
||
CE2E000230000144EFBBC0100002C1
|
||
To + 11
|
||
406.064 MHz
|
||
9C5C00047000028
|
||
CE2E000238000146B10A40100002C1
|
||
To + 11
|
||
406.067 MHz
|
||
9C5C00048000028
|
||
CE2E000240000141071B80100002C1
|
||
To + 11
|
||
406.070 MHz
|
||
9C5C00049000028
|
||
CE2E00024800014359AA00100002C1
|
||
To + 12
|
||
406.061 MHz –500 Hz
|
||
9C5C00050000028
|
||
CE2E000280000143AC9D00100002C1
|
||
To + 12
|
||
406.064 MHz –500 Hz
|
||
9C5C00051000028
|
||
CE2E000288000141F22C80100002C1
|
||
To + 12
|
||
406.067 MHz –500 Hz
|
||
9C5C00052000028
|
||
CE2E00029000014711FE00100002C1
|
||
To + 12
|
||
406.070 MHz –500Hz
|
||
9C5C00053000028
|
||
CE2E0002980001454F4F80100002C1
|
||
To + 13
|
||
406.061 MHz –400 Hz
|
||
9C5C00054000028
|
||
CE2E0002A00001436023C0100002C1
|
||
To + 13
|
||
406.064 MHz –400 Hz
|
||
9C5C00055000028
|
||
CE2E0002A80001413E9240100002C1
|
||
To + 13
|
||
406.067 MHz –400 Hz
|
||
9C5C00056000028
|
||
CE2E0002B0000147DD40C0100002C1
|
||
To + 13
|
||
406.070 MHz –400Hz
|
||
9C5C00057000028
|
||
CE2E0002B800014583F140100002C1
|
||
To + 14
|
||
406.061 MHz –300 Hz
|
||
9C5C00058000028
|
||
CE2E0002C000014235E080100002C1
|
||
To + 14
|
||
406.064 MHz –300 Hz
|
||
9C5C00059000028
|
||
CE2E0002C80001406B5100100002C1
|
||
To + 14
|
||
406.067 MHz –300 Hz
|
||
|
||
R11OCT03
|
||
B - 3
|
||
|
||
EIRP 28 dBm To= Year/Month/Time (GMT hour : minute : second) e.g. 2002/08/06:43:22______________________
|
||
15 Hex ID of Bcn Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First Burst
|
||
in Bcn Event
|
||
Tx Freq
|
||
9C5C00060000028
|
||
CE2E000300000146FB9000100002C1
|
||
To + 14
|
||
406.070 MHz –300Hz
|
||
9C5C00061000028
|
||
CE2E000308000144A52180100002C1
|
||
To + 15
|
||
406.061 MHz –200 Hz
|
||
9C5C00062000028
|
||
CE2E00031000014246F300100002C1
|
||
To + 15
|
||
406.064 MHz –200 Hz
|
||
9C5C00063000028
|
||
CE2E000318000140184280100002C1
|
||
To + 15
|
||
406.067 MHz –200 Hz
|
||
9C5C00064000028
|
||
CE2E000320000146372EC0100002C1
|
||
To + 15
|
||
406.070 MHz –200Hz
|
||
9C5C00065000028
|
||
CE2E000328000144699F40100002C1
|
||
To + 16
|
||
406.061 MHz –100 Hz
|
||
9C5C00066000028
|
||
CE2E0003300001428A4DC0100002C1
|
||
To + 16
|
||
406.064 MHz –100 Hz
|
||
9C5C00067000028
|
||
CE2E000338000140D4FC40100002C1
|
||
To + 16
|
||
406.067 MHz –100 Hz
|
||
9C5C00068000028
|
||
CE2E00034000014762ED80100002C1
|
||
To + 16
|
||
406.070 MHz –100Hz
|
||
9C5C00069000028
|
||
CE2E0003480001453C5C00100002C1
|
||
To + 17
|
||
406.061 MHz
|
||
9C5C00070000028
|
||
CE2E000380000145C96B00100002C1
|
||
To + 17
|
||
406.064 MHz
|
||
9C5C00071000028
|
||
CE2E00038800014797DA80100002C1
|
||
To + 17
|
||
406.067 MHz
|
||
9C5C00072000028
|
||
CE2E000390000141740800100002C1
|
||
To + 17
|
||
406.070 MHz
|
||
9C5C00073000028
|
||
CE2E0003980001432AB980100002C1
|
||
To + 18
|
||
406.061 MHz +500 Hz
|
||
9C5C00074000028
|
||
CE2E0003A000014505D5C0100002C1
|
||
To + 18
|
||
406.064 MHz +500 Hz
|
||
9C5C00075000028
|
||
CE2E0003A80001475B6440100002C1
|
||
To + 18
|
||
406.067 MHz +500 Hz
|
||
9C5C00076000028
|
||
CE2E0003B0000141B8B6C0100002C1
|
||
To + 18
|
||
406.070 MHz +500Hz
|
||
9C5C00077000028
|
||
CE2E0003B8000143E60740100002C1
|
||
To + 19
|
||
406.061 MHz +400 Hz
|
||
9C5C00078000028
|
||
CE2E0003C0000144501680100002C1
|
||
To + 19
|
||
406.064 MHz +400 Hz
|
||
9C5C00079000028
|
||
CE2E0003C80001460EA700100002C1
|
||
To + 19
|
||
406.067 MHz +400 Hz
|
||
9C5C00080000028
|
||
CE2E000400000146AEA380100002C1
|
||
To + 19
|
||
406.070 MHz +400Hz
|
||
9C5C00081000028
|
||
CE2E000408000144F01200100002C1
|
||
To + 20
|
||
406.061 MHz +300 Hz
|
||
9C5C00082000028
|
||
CE2E00041000014213C080100002C1
|
||
To + 20
|
||
406.064 MHz +300 Hz
|
||
9C5C00083000028
|
||
CE2E0004180001404D7100100002C1
|
||
To + 20
|
||
406.067 MHz +300 Hz
|
||
9C5C00084000028
|
||
CE2E000420000146621D40100002C1
|
||
To + 20
|
||
406.070 MHz +300Hz
|
||
9C5C00085000028
|
||
CE2E0004280001443CACC0100002C1
|
||
To + 21
|
||
406.061 MHz +200 Hz
|
||
9C5C00086000028
|
||
CE2E000430000142DF7E40100002C1
|
||
To + 21
|
||
406.064 MHz +200 Hz
|
||
9C5C00087000028
|
||
CE2E00043800014081CFC0100002C1
|
||
To + 21
|
||
406.067 MHz +200 Hz
|
||
9C5C00088000028
|
||
CE2E00044000014737DE00100002C1
|
||
To + 21
|
||
406.070 MHz +200Hz
|
||
9C5C00089000028
|
||
CE2E000448000145696F80100002C1
|
||
To + 22
|
||
406.061 MHz +100 Hz
|
||
9C5C00090000028
|
||
CE2E0004800001459C5880100002C1
|
||
To + 22
|
||
406.064 MHz +100 Hz
|
||
9C5C00091000028
|
||
CE2E000488000147C2E900100002C1
|
||
To + 22
|
||
406.067 MHz +100 Hz
|
||
9C5C00092000028
|
||
CE2E000490000141213B80100002C1
|
||
To + 22
|
||
406.070 MHz +100Hz
|
||
9C5C00093000028
|
||
CE2E0004980001437F8A00100002C1
|
||
To + 23
|
||
406.061 MHz
|
||
9C5C00094000028
|
||
CE2E0004A000014550E640100002C1
|
||
To + 23
|
||
406.064 MHz
|
||
9C5C00095000028
|
||
CE2E0004A80001470E57C0100002C1
|
||
To + 23
|
||
406.067 MHz
|
||
9C5C00096000028
|
||
CE2E0004B0000141ED8540100002C1
|
||
To + 23
|
||
406.070 MHz
|
||
9C5C00097000028
|
||
CE2E0004B8000143B334C0100002C1
|
||
To + 24
|
||
406.061 MHz –500 Hz
|
||
9C5C00098000028
|
||
CE2E0004C0000144052500100002C1
|
||
To + 24
|
||
406.064 MHz –500 Hz
|
||
9C5C00099000028
|
||
CE2E0004C80001465B9480100002C1
|
||
To + 24
|
||
406.067 MHz –500 Hz
|
||
9C5C00100000028
|
||
CE2E000800000143795040100002C1
|
||
To + 24
|
||
406.070 MHz –500Hz
|
||
9C5C00101000028
|
||
CE2E00080800014127E1C0100002C1
|
||
To + 25
|
||
406.061 MHz –400 Hz
|
||
9C5C00102000028
|
||
CE2E000810000147C43340100002C1
|
||
To + 25
|
||
406.064 MHz –400 Hz
|
||
9C5C00103000028
|
||
CE2E0008180001459A82C0100002C1
|
||
To + 25
|
||
406.067 MHz –400 Hz
|
||
|
||
R11OCT03
|
||
B - 4
|
||
|
||
EIRP 28 dBm To= Year/Month/Time (GMT hour : minute : second) e.g. 2002/08/06:43:22______________________
|
||
15 Hex ID of Bcn Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First Burst
|
||
in Bcn Event
|
||
Tx Freq
|
||
9C5C00104000028
|
||
CE2E000820000143B5EE80100002C1
|
||
To + 25
|
||
406.070 MHz –400Hz
|
||
9C5C00105000028
|
||
CE2E000828000141EB5F00100002C1
|
||
To + 26
|
||
406.061 MHz –300 Hz
|
||
9C5C00106000028
|
||
CE2E000830000147088D80100002C1
|
||
To + 26
|
||
406.064 MHz –300 Hz
|
||
9C5C00107000028
|
||
CE2E000838000145563C00100002C1
|
||
To + 26
|
||
406.067 MHz –300 Hz
|
||
9C5C00108000028
|
||
CE2E000840000142E02DC0100002C1
|
||
To + 26
|
||
406.070 MHz –300Hz
|
||
9C5C00109000028
|
||
CE2E000848000140BE9C40100002C1
|
||
To + 27
|
||
406.061 MHz –200 Hz
|
||
9C5C00110000028
|
||
CE2E0008800001404BAB40100002C1
|
||
To + 27
|
||
406.064 MHz –200 Hz
|
||
9C5C00111000028
|
||
CE2E000888000142151AC0100002C1
|
||
To + 27
|
||
406.067 MHz –200 Hz
|
||
9C5C00112000028
|
||
CE2E000890000144F6C840100002C1
|
||
To + 27
|
||
406.070 MHz –200Hz
|
||
9C5C00113000028
|
||
CE2E000898000146A879C0100002C1
|
||
To + 28
|
||
406.061 MHz –100 Hz
|
||
9C5C00114000028
|
||
CE2E0008A0000140871580100002C1
|
||
To + 28
|
||
406.064 MHz –100 Hz
|
||
9C5C00115000028
|
||
CE2E0008A8000142D9A400100002C1
|
||
To + 28
|
||
406.067 MHz –100 Hz
|
||
9C5C00116000028
|
||
CE2E0008B00001443A7680100002C1
|
||
To + 28
|
||
406.070 MHz –100Hz
|
||
9C5C00117000028
|
||
CE2E0008B800014664C700100002C1
|
||
To + 29
|
||
406.061 MHz
|
||
9C5C00118000028
|
||
CE2E0008C0000141D2D6C0100002C1
|
||
To + 29
|
||
406.064 MHz
|
||
9C5C00119000028
|
||
CE2E0008C80001438C6740100002C1
|
||
To + 29
|
||
406.067 MHz
|
||
9C5C00120000028
|
||
CE2E0009000001451CA640100002C1
|
||
To + 29
|
||
406.070 MHz
|
||
9C5C00121000028
|
||
CE2E0009080001474217C0100002C1
|
||
To + 30
|
||
406.061 MHz +500 Hz
|
||
9C5C00122000028
|
||
CE2E000910000141A1C540100002C1
|
||
To + 30
|
||
406.064 MHz +500 Hz
|
||
9C5C00123000028
|
||
CE2E000918000143FF74C0100002C1
|
||
To + 30
|
||
406.067 MHz +500 Hz
|
||
9C5C00124000028
|
||
CE2E000920000145D01880100002C1
|
||
To + 30
|
||
406.070 MHz +500Hz
|
||
9C5C00125000028
|
||
CE2E0009280001478EA900100002C1
|
||
To + 31
|
||
406.061 MHz +400 Hz
|
||
9C5C00126000028
|
||
CE2E0009300001416D7B80100002C1
|
||
To + 31
|
||
406.064 MHz +400 Hz
|
||
9C5C00127000028
|
||
CE2E00093800014333CA00100002C1
|
||
To + 31
|
||
406.067 MHz +400 Hz
|
||
9C5C00128000028
|
||
CE2E00094000014485DBC0100002C1
|
||
To + 31
|
||
406.070 MHz +400Hz
|
||
9C5C00129000028
|
||
CE2E000948000146DB6A40100002C1
|
||
To + 32
|
||
406.061 MHz +300 Hz
|
||
9C5C00130000028
|
||
CE2E0009800001462E5D40100002C1
|
||
To + 32
|
||
406.064 MHz +300 Hz
|
||
9C5C00131000028
|
||
CE2E00098800014470ECC0100002C1
|
||
To + 32
|
||
406.067 MHz +300 Hz
|
||
9C5C00132000028
|
||
CE2E000990000142933E40100002C1
|
||
To + 32
|
||
406.070 MHz +300Hz
|
||
9C5C00133000028
|
||
CE2E000998000140CD8FC0100002C1
|
||
To + 33
|
||
406.061 MHz +200 Hz
|
||
9C5C00134000028
|
||
CE2E0009A0000146E2E380100002C1
|
||
To + 33
|
||
406.064 MHz +200 Hz
|
||
9C5C00135000028
|
||
CE2E0009A8000144BC5200100002C1
|
||
To + 33
|
||
406.067 MHz +200 Hz
|
||
9C5C00136000028
|
||
CE2E0009B00001425F8080100002C1
|
||
To + 33
|
||
406.070 MHz +200Hz
|
||
9C5C00137000028
|
||
CE2E0009B8000140013100100002C1
|
||
To + 34
|
||
406.061 MHz +100 Hz
|
||
9C5C00138000028
|
||
CE2E0009C0000147B720C0100002C1
|
||
To + 34
|
||
406.064 MHz +100 Hz
|
||
9C5C00139000028
|
||
CE2E0009C8000145E99140100002C1
|
||
To + 34
|
||
406.067 MHz +100 Hz
|
||
9C5C00140000028
|
||
CE2E000A0000014604C480100002C1
|
||
To + 34
|
||
406.070 MHz +100Hz
|
||
9C5C00141000028
|
||
CE2E000A080001445A7500100002C1
|
||
To + 35
|
||
406.061 MHz
|
||
9C5C00142000028
|
||
CE2E000A10000142B9A780100002C1
|
||
To + 35
|
||
406.064 MHz
|
||
9C5C00143000028
|
||
CE2E000A18000140E71600100002C1
|
||
To + 35
|
||
406.067 MHz
|
||
9C5C00144000028
|
||
CE2E000A20000146C87A40100002C1
|
||
To + 35
|
||
406.070 MHz
|
||
9C5C00145000028
|
||
CE2E000A2800014496CBC0100002C1
|
||
To + 36
|
||
406.061 MHz –500 Hz
|
||
9C5C00146000028
|
||
CE2E000A30000142751940100002C1
|
||
To + 36
|
||
406.064 MHz –500 Hz
|
||
9C5C00147000028
|
||
CE2E000A380001402BA8C0100002C1
|
||
To + 36
|
||
406.067 MHz –500 Hz
|
||
|
||
R11OCT03
|
||
B - 5
|
||
|
||
EIRP 28 dBm To= Year/Month/Time (GMT hour : minute : second) e.g. 2002/08/06:43:22______________________
|
||
15 Hex ID of Bcn Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First Burst
|
||
in Bcn Event
|
||
Tx Freq
|
||
9C5C00148000028
|
||
CE2E000A400001479DB900100002C1
|
||
To + 36
|
||
406.070 MHz –500Hz
|
||
9C5C00149000028
|
||
CE2E000A48000145C30880100002C1
|
||
To + 37
|
||
406.061 MHz –400 Hz
|
||
9C5C00150000028
|
||
CE2E000A80000145363F80100002C1
|
||
To + 37
|
||
406.064 MHz –400 Hz
|
||
9C5C00151000028
|
||
CE2E000A88000147688E00100002C1
|
||
To + 37
|
||
406.067 MHz –400 Hz
|
||
9C5C00152000028
|
||
CE2E000A900001418B5C80100002C1
|
||
To + 37
|
||
406.070 MHz –400Hz
|
||
9C5C00153000028
|
||
CE2E000A98000143D5ED00100002C1
|
||
To + 38
|
||
406.061 MHz –300 Hz
|
||
9C5C00154000028
|
||
CE2E000AA0000145FA8140100002C1
|
||
To + 38
|
||
406.064 MHz –300 Hz
|
||
9C5C00155000028
|
||
CE2E000AA8000147A430C0100002C1
|
||
To + 38
|
||
406.067 MHz –300 Hz
|
||
9C5C00156000028
|
||
CE2E000AB000014147E240100002C1
|
||
To + 38
|
||
406.070 MHz –300Hz
|
||
9C5C00157000028
|
||
CE2E000AB80001431953C0100002C1
|
||
To + 39
|
||
406.061 MHz –200 Hz
|
||
9C5C00158000028
|
||
CE2E000AC0000144AF4200100002C1
|
||
To + 39
|
||
406.064 MHz –200 Hz
|
||
9C5C00159000028
|
||
CE2E000AC8000146F1F380100002C1
|
||
To + 39
|
||
406.067 MHz –200 Hz
|
||
9C5C00160000028
|
||
CE2E000B00000140613280100002C1
|
||
To + 39
|
||
406.070 MHz –200Hz
|
||
9C5C00161000028
|
||
CE2E000B080001423F8300100002C1
|
||
To + 40
|
||
406.061 MHz –100 Hz
|
||
9C5C00162000028
|
||
CE2E000B10000144DC5180100002C1
|
||
To + 40
|
||
406.064 MHz –100 Hz
|
||
9C5C00163000028
|
||
CE2E000B1800014682E000100002C1
|
||
To + 40
|
||
406.067 MHz –100 Hz
|
||
9C5C00164000028
|
||
CE2E000B20000140AD8C40100002C1
|
||
To + 40
|
||
406.070 MHz –100Hz
|
||
9C5C00165000028
|
||
CE2E000B28000142F33DC0100002C1
|
||
To + 41
|
||
406.061 MHz
|
||
9C5C00166000028
|
||
CE2E000B3000014410EF40100002C1
|
||
To + 41
|
||
406.064 MHz
|
||
9C5C00167000028
|
||
CE2E000B380001464E5EC0100002C1
|
||
To + 41
|
||
406.067 MHz
|
||
9C5C00168000028
|
||
CE2E000B40000141F84F00100002C1
|
||
To + 41
|
||
406.070 MHz
|
||
9C5C00169000028
|
||
CE2E000B48000143A6FE80100002C1
|
||
To + 42
|
||
406.061 MHz +500 Hz
|
||
9C5C00170000028
|
||
CE2E000B8000014353C980100002C1
|
||
To + 42
|
||
406.064 MHz +500 Hz
|
||
9C5C00171000028
|
||
CE2E000B880001410D7800100002C1
|
||
To + 42
|
||
406.067 MHz +500 Hz
|
||
9C5C00172000028
|
||
CE2E000B90000147EEAA80100002C1
|
||
To + 42
|
||
406.070 MHz +500Hz
|
||
9C5C00173000028
|
||
CE2E000B98000145B01B00100002C1
|
||
To + 43
|
||
406.061 MHz +400 Hz
|
||
9C5C00174000028
|
||
CE2E000BA00001439F7740100002C1
|
||
To + 43
|
||
406.064 MHz +400 Hz
|
||
9C5C00175000028
|
||
CE2E000BA8000141C1C6C0100002C1
|
||
To + 43
|
||
406.067 MHz +400 Hz
|
||
9C5C00176000028
|
||
CE2E000BB0000147221440100002C1
|
||
To + 43
|
||
406.070 MHz +400Hz
|
||
9C5C00177000028
|
||
CE2E000BB80001457CA5C0100002C1
|
||
To + 44
|
||
406.061 MHz +300 Hz
|
||
9C5C00178000028
|
||
CE2E000BC0000142CAB400100002C1
|
||
To + 44
|
||
406.064 MHz +300 Hz
|
||
9C5C00179000028
|
||
CE2E000BC8000140940580100002C1
|
||
To + 44
|
||
406.067 MHz +300 Hz
|
||
9C5C00180000028
|
||
CE2E000C00000140340100100002C1
|
||
To + 44
|
||
406.070 MHz +300Hz
|
||
9C5C00181000028
|
||
CE2E000C080001426AB080100002C1
|
||
To + 45
|
||
406.061 MHz +200 Hz
|
||
9C5C00182000028
|
||
CE2E000C10000144896200100002C1
|
||
To + 45
|
||
406.064 MHz +200 Hz
|
||
9C5C00183000028
|
||
CE2E000C18000146D7D380100002C1
|
||
To + 45
|
||
406.067 MHz +200 Hz
|
||
9C5C00184000028
|
||
CE2E000C20000140F8BFC0100002C1
|
||
To + 45
|
||
406.070 MHz +200Hz
|
||
9C5C00185000028
|
||
CE2E000C28000142A60E40100002C1
|
||
To + 46
|
||
406.061 MHz +100 Hz
|
||
9C5C00186000028
|
||
CE2E000C3000014445DCC0100002C1
|
||
To + 46
|
||
406.064 MHz +100 Hz
|
||
9C5C00187000028
|
||
CE2E000C380001461B6D40100002C1
|
||
To + 46
|
||
406.067 MHz +100 Hz
|
||
9C5C00188000028
|
||
CE2E000C40000141AD7C80100002C1
|
||
To + 46
|
||
406.070 MHz +100Hz
|
||
9C5C00189000028
|
||
CE2E000C48000143F3CD00100002C1
|
||
To + 47
|
||
406.061 MHz
|
||
9C5C00190000028
|
||
CE2E000C8000014306FA00100002C1
|
||
To + 47
|
||
406.064 MHz
|
||
9C5C00191000028
|
||
CE2E000C88000141584B80100002C1
|
||
To + 47
|
||
406.067 MHz
|
||
|
||
R11OCT03
|
||
B - 6
|
||
|
||
EIRP 28 dBm To= Year/Month/Time (GMT hour : minute : second) e.g. 2002/08/06:43:22______________________
|
||
15 Hex ID of Bcn Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First Burst
|
||
in Bcn Event
|
||
Tx Freq
|
||
9C5C00192000028
|
||
CE2E000C90000147BB9900100002C1
|
||
To + 47
|
||
406.070 MHz
|
||
9C5C00193000028
|
||
CE2E000C98000145E52880100002C1
|
||
To + 48
|
||
406.061 MHz +500 Hz
|
||
9C5C00194000028
|
||
CE2E000CA0000143CA44C0100002C1
|
||
To + 48
|
||
406.064 MHz +500 Hz
|
||
9C5C00195000028
|
||
CE2E000CA800014194F540100002C1
|
||
To + 48
|
||
406.067 MHz +500 Hz
|
||
9C5C00196000028
|
||
CE2E000CB00001477727C0100002C1
|
||
To + 48
|
||
406.070 MHz +500Hz
|
||
9C5C00197000028
|
||
CE2E000CB8000145299640100002C1
|
||
To + 49
|
||
406.061 MHz +400 Hz
|
||
9C5C00198000028
|
||
CE2E000CC00001429F8780100002C1
|
||
To + 49
|
||
406.064 MHz +400 Hz
|
||
9C5C00199000028
|
||
CE2E000CC8000140C13600100002C1
|
||
To + 49
|
||
406.067 MHz +400 Hz
|
||
9C5C00200000028
|
||
CE2E00100000014160CF00100002C1
|
||
To + 49
|
||
406.070 MHz +400Hz
|
||
- END OF ANNEX B -
|
||
|
||
R11OCT03
|
||
C - 1
|
||
|
||
ANNEX C
|
||
TEST SCRIPTS FOR OBJECTIVE T-4
|
||
(Channel Capacity)
|
||
Introduction
|
||
This annex provides a description of the test signals that will be transmitted by the French
|
||
simulator for objective T-4. Each row in the table represents a single beacon event. Each
|
||
beacon event is comprised of 18 beacon bursts, which may overlap in time. The start of time
|
||
of the first beacon burst for each beacon event is provided in the table.
|
||
To obtain sufficient statistics 10 different scripts for each beacon population will be
|
||
transmitted. The first of the 10 scripts simulating 15 simultaneously active beacons is
|
||
provided below.
|
||
The 15 Hex ID of each beacon event conforms to the following convention:
|
||
9 C 5 C 0 0 C XX XX X 0 34
|
||
.
|
||
.
|
||
Updated table to be provided by France
|
||
- END OF ANNEX C -
|
||
Fixed Values
|
||
For all Beacon
|
||
Events
|
||
“C”
|
||
Indicating
|
||
Capacity Test
|
||
Number
|
||
of Active
|
||
Beacons
|
||
Script Sequence
|
||
Identifier (1
|
||
through A)
|
||
Fixed Values
|
||
For all Beacon
|
||
Events
|
||
Beacon Event
|
||
Serial Number
|
||
Transmit
|
||
EIRP
|
||
|
||
R11OCT03
|
||
C - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT03
|
||
D - 1
|
||
|
||
ANNEX D
|
||
TEST SCRIPTS FOR OBJECTIVES T-6 AND T-7
|
||
Introduction
|
||
This annex provides a description and schedule of the test signals that will be transmitted by
|
||
the French simulator for objectives T-6 and T-7. Each row in the table represents a single
|
||
beacon event used in the test script. Each beacon event will replicate a typical 406 MHz
|
||
distress beacon active for a period of 20 minutes (24 bursts).
|
||
The 15 Hex ID of each beacon event conforms to the following convention:
|
||
9 C 5 C 0 0 67 0 XXX 0 37
|
||
15 Hex ID of Bcn
|
||
Event
|
||
30 Hex Msg of Bcn Event
|
||
Time of First
|
||
Burst in Bcn
|
||
Event
|
||
To + X Sec
|
||
(hh:mm:ss.cc)
|
||
Tx Freq
|
||
9C5C00670001037 CE2E0033800081BB80A1C0100002C1
|
||
00:00:40.58
|
||
406.061
|
||
9C5C00670002037 CE2E0033800101BFC3CF40100002C1
|
||
00:10:24.79
|
||
406.061
|
||
9C5C00670003037 CE2E0033800181BC02EAC0100002C1
|
||
00:20:42.40
|
||
406.061
|
||
9C5C00670004037 CE2E0033800201BEF36A80100002C1
|
||
00:30:00.75
|
||
406.061
|
||
9C5C00670005037 CE2E0033800281BD324F00100002C1
|
||
00:40:26.58
|
||
406.061
|
||
9C5C00670006037 CE2E0033800301B9712180100002C1
|
||
00:50:43.33
|
||
406.061
|
||
9C5C00670007037 CE2E0033800381BAB00400100002C1
|
||
01:00:19.72
|
||
406.061
|
||
9C5C00670008037 CE2E0033800401BC922100100002C1
|
||
01:10:32.53
|
||
406.061
|
||
9C5C00670009037 CE2E0033800481BF530480100002C1
|
||
01:20:02.53
|
||
406.061
|
||
9C5C00670010037 CE2E0033800801B850B600100002C1
|
||
01:30:14.09
|
||
406.061
|
||
…
|
||
…
|
||
…
|
||
…
|
||
9C5C00670272037 CE2E0033813901BD921880100002C1
|
||
48:10:48.27
|
||
406.061
|
||
- END OF ANNEX D -
|
||
Fixed Values
|
||
For all Beacon
|
||
Events
|
||
“67”
|
||
indicating tests
|
||
T6 and T7
|
||
Fixed
|
||
Value
|
||
Fixed
|
||
Value
|
||
Beacon Event
|
||
Serial Number
|
||
Transmit EIRP
|
||
|
||
R11OCT03
|
||
D - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT17.02
|
||
E - 1
|
||
|
||
ANNEX E
|
||
DATA TO BE COLLECTED FOR OBJECTIVES T-1, T-2 AND T-3
|
||
Introduction
|
||
This annex provides a description of the data to be recorded for each beacon event transmitted by the simulator for objectives T-1, T-2, and T-3.
|
||
This information provides the foundation for the analysis and conclusions provided in the body of the report.
|
||
The table below combines information obtained from the simulator operator, with data collected from the GEOLUT under test. Each row in the
|
||
table represents a single beacon event.
|
||
A separate table should be provided for each run of the simulator (i.e. there should be 4 tables for each EIRP value since each EIRP scenario is
|
||
repeated 4 times).
|
||
These tables should be included as an annex in the MSG Performance Evaluation Report provided by each participating MSG GEOLUT
|
||
operator.
|
||
Table E-1: Results for Tests T-1, T-2 and T-3
|
||
EIRP (dBm)__________________ Date/Time of First Burst in Test Script Run 1____________
|
||
15 Hex ID
|
||
Tx by
|
||
Simulator
|
||
Time of
|
||
First Burst
|
||
in Bcn
|
||
Event
|
||
Time
|
||
GEOLUT
|
||
provided First
|
||
Valid Msg
|
||
First Valid
|
||
Msg C/No
|
||
Measured by
|
||
GEOLUT
|
||
(dBHz)
|
||
Time
|
||
GEOLUT
|
||
provided First
|
||
Complete Msg
|
||
First Complete
|
||
Msg C/No
|
||
Measured by
|
||
GEOLUT
|
||
(dBHz)
|
||
Time GEOLUT
|
||
Provided
|
||
Confirmed Msg
|
||
Confirmed
|
||
Complete Msg
|
||
C/No Measured
|
||
by GEOLUT
|
||
(dBHz)
|
||
Freq
|
||
Transmitted
|
||
(Hz)
|
||
Calibrated Freq
|
||
Measured by
|
||
GEOLUT for first
|
||
Valid Message (Hz)
|
||
The time required for the GEOLUT to produce a valid message for each beacon event can be calculated by taking the difference between
|
||
columns 3 and 2. The time to produce complete and confirmed complete message is the difference between columns 5 and 2, and 7 and 2.
|
||
|
||
R11OCT17.02
|
||
E - 2
|
||
|
||
- END OF ANNEX E –
|
||
|
||
R11OCT17.02
|
||
F - 1
|
||
|
||
ANNEX F
|
||
DATA TO BE COLLECTED FOR OBJECTIVE T-4
|
||
Introduction
|
||
This annex provides a description of the data which should be recorded for each beacon event transmitted by the simulator for objective T-4. This
|
||
information provides the foundation for the analysis and conclusions provided in the body of the report.
|
||
The table below combines information obtained from the simulator operator, with data collected by the GEOLUT under test. Each row in the table
|
||
represents a single beacon event.
|
||
A separate table should be provided for each run of a test script (i.e. there should be 10 tables for each simulated traffic load).
|
||
These tables should be included as an annex in the MSG Performance Evaluation Report provided by each participating MSG GEOLUT operator.
|
||
- END OF ANNEX F -
|
||
Simulated Traffic Load (Number of simultaneously occurring beacon events)______________
|
||
Script Number ___ Date/Time of First Burst in Test Script Run 1____________
|
||
15 Hex ID
|
||
Tx by
|
||
Simulator
|
||
Time of First
|
||
Burst in Bcn
|
||
Event
|
||
Time GEOLUT
|
||
provided First
|
||
Valid Msg
|
||
First Valid
|
||
Msg C/No
|
||
Measured by
|
||
GEOLUT
|
||
(dBHz)
|
||
Time GEOLUT
|
||
provided first
|
||
Complete Msg
|
||
First Complete
|
||
Msg C/No
|
||
Measured by
|
||
GEOLUT
|
||
(dBHz)
|
||
Time GEOLUT
|
||
Confirmed Complete
|
||
Msg
|
||
Confirmed
|
||
Complete Msg
|
||
C/No Measured by
|
||
GEOLUT (dBHz)
|
||
Frequency
|
||
|
||
R11OCT17.02
|
||
F - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT17.02
|
||
G - 1
|
||
|
||
ANNEX G
|
||
DATA TO BE COLLECTED FOR OBJECTIVES T-6 AND T-7
|
||
Introduction
|
||
This annex provides a description of the data which should be recorded for each beacon event transmitted by the simulator for objectives T-6 and
|
||
T-7. This information provides the foundation for the analysis and conclusions provided in the body of the report.
|
||
The table below combines information obtained from the simulator operator, with data collected by the GEOLUT under test. Each row in the
|
||
table represents a single beacon event.
|
||
This table should be included as an annex in the MSG Performance Evaluation Report provided by each participating MSG GEOLUT operator.
|
||
15 Hex ID Tx by
|
||
Simulator
|
||
Time of
|
||
First Burst
|
||
in Bcn
|
||
Event
|
||
Time
|
||
GEOLUT
|
||
Provided
|
||
First Valid
|
||
Msg
|
||
First Valid
|
||
Msg C/No
|
||
measured by
|
||
GEOLUT
|
||
(dBHz)
|
||
Time
|
||
GEOLUT
|
||
Provided First
|
||
Complete
|
||
Message
|
||
First
|
||
Complete Msg
|
||
C/No measured
|
||
by GEOLUT
|
||
(dBHz)
|
||
Time
|
||
GEOLUT
|
||
Provided First
|
||
Confirmed
|
||
Complete Msg
|
||
Confirmed
|
||
Complete Msg
|
||
C/No measured by
|
||
GEOLUT (dBHz)
|
||
LEOSAR
|
||
Interference
|
||
(Y/N)
|
||
- END OF ANNEX G -
|
||
|
||
R11OCT17.02
|
||
G - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT17.02
|
||
H - 1
|
||
|
||
ANNEX H
|
||
DATA TO BE COLLECTED FOR OBJECTIVE T-8
|
||
Introduction
|
||
This annex provides a description of the data which should be recorded for each processing
|
||
anomaly noted in the 406 MHz channel reserved for reference beacons.
|
||
This table should be included as an annex in the MSG Performance Evaluation Report
|
||
provided by each participating MSG GEOLUT operator.
|
||
15 Hex ID
|
||
Produced by
|
||
GEOLUT
|
||
15 Hex ID of
|
||
Associated
|
||
Reference Beacon
|
||
Beacon Message
|
||
Produced by
|
||
GEOLUT
|
||
(30 Hex)
|
||
C/No of
|
||
Message as
|
||
Measured by
|
||
GEOLUT
|
||
(dBHz)
|
||
Date /
|
||
Time
|
||
LUT in
|
||
LEO
|
||
Footprint
|
||
(Y/N)
|
||
_________ = Total duration that the GEOLUT was in the footprint of a LEOSAR satellite
|
||
during the 4 week period of observation.
|
||
- END OF ANNEX H -
|
||
|
||
R11OCT17.02
|
||
H - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT17.02
|
||
I - 1
|
||
|
||
ANNEX I
|
||
DATA TO BE COLLECTED FOR OBJECTIVE T-9
|
||
Introduction
|
||
This annex provides a description of the data which should be recorded for test T-9 (MSG
|
||
Coverage), for the test using beacon events of opportunity.
|
||
This table should be included as an annex in the MSG Performance Evaluation Report
|
||
provided by each participating MSG GEOLUT operator.
|
||
15 Hex ID
|
||
Location Determined by
|
||
LEOSAR System
|
||
LEOSAR Detection
|
||
Time
|
||
Detected by
|
||
GEOLUT
|
||
(Yes / No)
|
||
- END OF ANNEX I -
|
||
|
||
R11OCT17.02
|
||
I - 2
|
||
|
||
page left blank
|
||
|
||
R11OCT17.02
|
||
J - 1
|
||
|
||
ANNEX J
|
||
MSG GEOSAR Performance Evaluation Programme Schedule
|
||
MILESTONE
|
||
|
||
|
||
J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O
|
||
01 – MSG Experts Working Group Meeting
|
||
|
||
02 - JC-16 Review Performance Evaluation Plan
|
||
|
||
03 - Finalise Changes to Plan
|
||
|
||
04 - CSC-29 Approve Plan
|
||
|
||
05 - GEOLUT Providers Install GEOLUTs
|
||
06 - France Develop Test Scripts For Eval Prog (Phase 3 - C/S R.011)
|
||
07 - MSG Satellite Launched
|
||
|
||
08 - EUMETSAT Initial On-orbit Testing
|
||
|
||
09 - Confirmation by EUMETSAT that Sat Available
|
||
|
||
10 - GEOSAR Space Segment Commissioning Tests (Phase 1 Testing)
|
||
11 – National GEOLUT Testing (Phase 2 Testing)
|
||
12 – Phase 2 Test Review and Phase 3 Preparation Meeting
|
||
|
||
13 – Individual GEOLUTs Declared Operational by Administration
|
||
14 – Conduct Performance Evaluation Programme (Phase 3 - C/S R.011)
|
||
15 – CSC-31 Consider Preliminary Phase 3 Test Reports
|
||
|
||
16 – MSG GEOSAR Task Group (Prepare MSG Performance Eval Report)
|
||
|
||
17 – Modify Technical Documents (if required)
|
||
GEOLUT Specification (C/S T.009)
|
||
GEOLUT Commissioning (C/S T.010)
|
||
18 – Modify Operational Documents (if required)
|
||
C/S A.001 (DDP)
|
||
C/S A.002 (SID)
|
||
19 – GEOLUT Operators Commission Tests (if not done under 11 above)
|
||
20 – JC-18 Review MSG Performance Evaluation Report
|
||
|
||
21 - CSC Commission MSG GEOLUTs
|
||
|
||
|
||
R11OCT17.02
|
||
J - 2
|
||
|
||
-END OF ANNEX J-
|
||
- END OF DOCUMENT -
|
||
|
||
Cospas-Sarsat Secretariat
|
||
1250 René-Lévesque Blvd. West, Suite 4215, Montréal (Québec) H3B 4W8 Canada
|
||
Telephone: +1 514 500 7999
|
||
Fax: +1 514 500 7996
|
||
Email: mail@cospas-sarsat.int
|
||
Website: http://www.cospas-sarsat.int |