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Actually working BPSK31 demod!

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ha7ilm
2017-05-07 19:52:24 +02:00
parent 8e2fdd473b
commit a985ba4af5
1 changed files with 5 additions and 3 deletions
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8
csdr.py
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@@ -93,15 +93,17 @@ class dsp:
return secondary_chain_base+"csdr realpart_cf | csdr fft_fc {secondary_fft_input_size} {secondary_fft_block_size} | csdr logpower_cf -70 " + (" | csdr compress_fft_adpcm_f_u8 {secondary_fft_size}" if self.fft_compression=="adpcm" else "")
elif which == "bpsk31":
return secondary_chain_base + ("csdr shift_addition_cc --fifo {secondary_shift_pipe} | " if 1 else "") + \
"csdr bandpass_fir_fft_cc -{secondary_bpf_cutoff} {secondary_bpf_cutoff} {secondary_bpf_transition_bw} HAMMING | " + \
"csdr simple_agc_cc 0.0001 0.5 | " + \
"csdr timing_recovery_cc EARLYLATE {secondary_samples_per_bits} --add_q | " + \
"csdr simple_agc_cc 0.001 0.5 | " + \
"tee /tmp/iqtmp1 | " + \
"csdr timing_recovery_cc GARDNER {secondary_samples_per_bits} --add_q | " + \
"CSDR_FIXED_BUFSIZE=1 csdr bpsk_costas_loop_cc $(csdr =2*pi/100) $(csdr =0.707) 7 |" + \
"CSDR_FIXED_BUFSIZE=1 csdr realpart_cf | " + \
"CSDR_FIXED_BUFSIZE=1 csdr binary_slicer_f_u8 | " + \
"CSDR_FIXED_BUFSIZE=1 csdr differential_decoder_u8_u8 | " + \
"CSDR_FIXED_BUFSIZE=1 csdr psk31_varicode_decoder_u8_u8"
#TODO digimodes:
"""
"csdr bandpass_fir_fft_cc -{secondary_bpf_cutoff} {secondary_bpf_cutoff} {secondary_bpf_transition_bw} HAMMING | " + \
return secondary_chain_base + "csdr shift_addition_cc {secondary_shift_pipe} | " + \
"csdr bandpass_fir_fft_cc -{secondary_bpf_cutoff} {secondary_bpf_cutoff} {secondary_bpf_transition_bw} HAMMING | " + \
"csdr simple_agc_cc 0.0001 0.5 | " + \