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2 Commits

Author SHA1 Message Date
Niccolò Izzo
5bf4df75ba Fine tune demodulator to OpenRTX M17 baseband 
Fine tuned M17 demodulator with code generated from OpenRTX itself.

TG-81
 2022-05-27 21:48:46 +02:00
Niccolò Izzo
3163dd49d7 Add M17 demodulator code and tests 
Added implementation of the M17 4FSK demodulator, including clock
recovery, phase detection, and quantization algorithms.
A testsuite is also included to do regression testing against a
reference baseband pre-generated and the corresponding reference
bitstream.

A 1% BER is still present due to a fault likely in the RRC filtering,
since the eye diagram of the filtered stream is bad.

TG-81
 2022-05-27 21:48:46 +02:00