5 Commits

Author	SHA1	Message	Date
Silvano Seva	3988540b6c	Changed coefficients for the 41-tap, 24kHz RRC filter to have unitary input-output gain	2022-05-27 21:48:47 +02:00
Niccolò Izzo	2d59658d60	Switch M17 Rx sample rate to 5SPS ... Due to the RRC computation sometimes violating the timing constraints, we switched the M17 demodulator to 5 samples per symbol (24KHz), thus dividing the processing time by four ar the number of samples halves as well as the number of taps of the RRC. Minor adaptation on the code followed. TG-81	2022-05-27 21:48:47 +02:00
Silvano Seva	da5c453852	Implemented unpacking and decoding of M17 audio stream frames	2022-05-27 21:48:47 +02:00
Niccolò Izzo	4b498689f5	Replace RRC filter taps, update M17 testsuite ... RRC filter taps have been replaced with the ones generated by Wojciech, a new baseband for the M17 demodulation testsuite has been generated, using OpenRTX itself and some further minor changes. TG-81	2022-05-27 21:48:46 +02:00
Niccolò Izzo	876cb87d57	Move rrc filter into separate compilation unit ... By moving the rrc filter into a separate compilation unit with its own header file, we can use it both in the modulator and in the demodulator.	2022-05-27 21:48:46 +02:00