Ryan Malloy
5867c54de3
Ported from zleffke/gr-sarsat (2018, GNU Radio 3.7): - Updated Python 2 → Python 3 - Converted XML block definitions to YAML - Added pyproject.toml for modern packaging - Preserved original MIT license Blocks: - biphase_l_decode_bb: Manchester decoder (decim_block) - pds_frame_sync: Frame synchronizer with PDU output - sarp_msg_extract: SARP message splitter/validator
32 lines
702 B
YAML
32 lines
702 B
YAML
id: sarsat_biphase_l_decode_bb
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label: Biphase-L Decoder
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category: '[Sarsat]'
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templates:
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imports: from sarsat import biphase_l_decode_bb
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make: biphase_l_decode_bb()
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inputs:
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- label: in
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domain: stream
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dtype: byte
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outputs:
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- label: out
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domain: stream
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dtype: byte
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documentation: |-
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Biphase-L (Manchester) Decoder for Cospas-Sarsat 406 MHz beacons.
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Biphase-L encoding represents:
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- Bit 0: Low-to-High transition at bit center
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- Bit 1: High-to-Low transition at bit center
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Input: Unpacked byte stream of Biphase-L encoded symbols (2 samples per bit)
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Output: Unpacked byte stream of decoded bits
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Decimation factor: 2 (two input samples produce one output bit)
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file_format: 1
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