diff --git a/apps/CMakeLists.txt b/apps/CMakeLists.txt index 28aa22b..88ce171 100644 --- a/apps/CMakeLists.txt +++ b/apps/CMakeLists.txt @@ -27,5 +27,7 @@ GR_PYTHON_INSTALL( flowgraphs/satnogs_fm_demod.py flowgraphs/satnogs_cw_demod.py flowgraphs/satnogs_generic_iq_receiver.py + flowgraphs/satnogs_bpsk_demod.py + flowgraphs/satnogs_apt_demod.py DESTINATION bin ) diff --git a/apps/flowgraphs/bpsk_demod.grc b/apps/flowgraphs/bpsk_demod.grc new file mode 100644 index 0000000..ee486d2 --- /dev/null +++ b/apps/flowgraphs/bpsk_demod.grc @@ -0,0 +1,2901 @@ + + + + Thu May 5 00:22:45 2016 + + options + + author + surligas, cshields, csete + + + window_size + 3000, 3000 + + + category + Custom + + + comment + + + + description + A generic BPSK demodulation block + + + _enabled + True + + + _coordinate + (8, 8) + + + _rotation + 0 + + + generate_options + no_gui + + + hier_block_src_path + .: + + + id + satnogs_cw_demod + + + max_nouts + 0 + + + qt_qss_theme + + + + realtime_scheduling + + + + run_command + {python} -u {filename} + + + run_options + run + + + run + True + + + thread_safe_setters + + + + title + BPSK Generic Demodulation + + + + variable + + comment + Decimation factor +for the RX after the +SDR received samples + + + _enabled + True + + + _coordinate + (1704, 796) + + + _rotation + 0 + + + id + audio_gain + + + value + satnogs.fm_demod_settings[rx_sdr_device]['audio_gain'] + + + + variable + + comment + + + + _enabled + True + + + _coordinate + (1704, 52) + + + _rotation + 0 + + + id + audio_samp_rate + + + value + 48000 + + + + variable + + comment + Decimation factor +for the RX after the +SDR received samples + + + _enabled + 0 + + + _coordinate + (1704, 348) + + + _rotation + 0 + + + id + decimation_rx + + + value + satnogs.fm_demod_settings[rx_sdr_device]['decimation_rx'] + + + + variable + + comment + + + + _enabled + True + + + _coordinate + (1480, 988) + + + _rotation + 0 + + + id + deviation + + + value + 5000 + + + + variable + + comment + + + + _enabled + True + + + _coordinate + (1704, 260) + + + _rotation + 0 + + + id + filter_rate + + + value + 250000 + + + + variable + + comment + + + + _enabled + 0 + + + _coordinate + (1704, 508) + + + _rotation + 0 + + + id + quadrature_rate + + + value + samp_rate_rx / decimation_rx + + + + variable + + comment + SDR device +TX sampling rate + + + _enabled + True + + + _coordinate + (1704, 956) + + + _rotation + 0 + + + id + samp_rate_rx + + + value + satnogs.hw_rx_settings[rx_sdr_device]['samp_rate'] + + + + variable_low_pass_filter_taps + + beta + 6.76 + + + comment + + + + cutoff_freq + 100e3 + + + _enabled + 1 + + + _coordinate + (48, 716) + + + _rotation + 0 + + + gain + 12.0 + + + id + taps + + + samp_rate + samp_rate_rx + + + width + 60000 + + + win + firdes.WIN_HAMMING + + + + variable + + comment + + + + _enabled + True + + + _coordinate + (1704, 164) + + + _rotation + 0 + + + id + xlate_filter_taps + + + value + firdes.low_pass(1, samp_rate_rx, 125000, 25000, firdes.WIN_HAMMING, 6.76) + + + + analog_agc2_xx + + attack_rate + 0.01 + + + alias + + + + comment + + + + affinity + + + + decay_rate + 0.001 + + + _enabled + 1 + + + _coordinate + (1472, 60) + + + _rotation + 0 + + + gain + 0.0 + + + id + analog_agc2_xx_0_0 + + + max_gain + 65536 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + reference + 0.015 + + + type + complex + + + + analog_sig_source_x + + amp + 1 + + + alias + + + + comment + + + + affinity + + + + _enabled + True + + + freq + cw_offset + + + _coordinate + (1360, 568) + + + _rotation + 180 + + + id + analog_sig_source_x_0 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + offset + 0 + + + type + complex + + + samp_rate + audio_samp_rate + + + waveform + analog.GR_COS_WAVE + + + + rational_resampler_xxx + + alias + + + + comment + + + + affinity + + + + decim + 125 + + + _enabled + True + + + fbw + 0 + + + _coordinate + (992, 268) + + + _rotation + 0 + + + id + blks2_rational_resampler_xxx_1 + + + interp + 24 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + taps + [] + + + type + ccc + + + + blocks_complex_to_real + + alias + + + + comment + + + + affinity + + + + _enabled + True + + + _coordinate + (1016, 504) + + + _rotation + 180 + + + id + blocks_complex_to_real_0 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + vlen + 1 + + + + blocks_multiply_xx + + alias + + + + comment + + + + affinity + + + + _enabled + True + + + _coordinate + (1216, 488) + + + _rotation + 180 + + + id + blocks_multiply_xx_0 + + + type + complex + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + num_inputs + 2 + + + vlen + 1 + + + + parameter + + alias + + + + comment + The CW offset shifts the carrier from 0 Hz to a +frequency that corresponds to the CW audio +tone. This tone is typically 500-800 Hz. + + + _enabled + True + + + _coordinate + (1360, 684) + + + _rotation + 0 + + + id + cw_offset + + + label + + + + short_id + + + + type + eng_float + + + value + 1500 + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (64, 984) + + + _rotation + 0 + + + id + doppler_correction_per_sec + + + label + + + + short_id + + + + type + intx + + + value + 1000 + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (744, 988) + + + _rotation + 180 + + + id + file_path + + + label + + + + short_id + + + + type + string + + + value + test.wav + + + + freq_xlating_fir_filter_xxx + + alias + + + + center_freq + lo_offset + + + comment + + + + affinity + + + + decim + int(samp_rate_rx/filter_rate) + + + _enabled + 1 + + + _coordinate + (680, 268) + + + _rotation + 0 + + + id + freq_xlating_fir_filter_xxx_0 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + samp_rate + samp_rate_rx + + + taps + xlate_filter_taps + + + type + ccc + + + + parameter + + alias + + + + comment + To avoid the SDR carrier at the DC +we shift the LO a little further + + + _enabled + True + + + _coordinate + (1704, 608) + + + _rotation + 0 + + + id + lo_offset + + + label + + + + short_id + + + + type + eng_float + + + value + 100e3 + + + + low_pass_filter + + beta + 6.76 + + + alias + + + + comment + + + + affinity + + + + cutoff_freq + 2000 + + + decim + 1 + + + _enabled + True + + + type + fir_filter_ccf + + + _coordinate + (1256, 36) + + + _rotation + 0 + + + gain + 1 + + + id + low_pass_filter_0 + + + interp + 1 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + samp_rate + audio_samp_rate + + + width + 1000 + + + win + firdes.WIN_HAMMING + + + + osmosdr_source + + alias + + + + ant0 + satnogs.hw_rx_settings[rx_sdr_device]['antenna'] + + + bb_gain0 + satnogs.hw_rx_settings[rx_sdr_device]['bb_gain'] + + + bw0 + samp_rate_rx + + + dc_offset_mode0 + 2 + + + corr0 + ppm + + + freq0 + rx_freq - lo_offset + + + gain_mode0 + False + + + if_gain0 + satnogs.hw_rx_settings[rx_sdr_device]['if_gain'] + + + iq_balance_mode0 + 0 + + + gain0 + satnogs.hw_rx_settings[rx_sdr_device]['rf_gain'] + + + ant10 + + + + bb_gain10 + 20 + + + bw10 + 0 + + + dc_offset_mode10 + 0 + + + corr10 + 0 + + + freq10 + 100e6 + + + gain_mode10 + False + + + if_gain10 + 20 + + + iq_balance_mode10 + 0 + + + gain10 + 10 + + + ant11 + + + + bb_gain11 + 20 + + + bw11 + 0 + + + dc_offset_mode11 + 0 + + + corr11 + 0 + + + freq11 + 100e6 + + + gain_mode11 + False + + + if_gain11 + 20 + + + iq_balance_mode11 + 0 + + + gain11 + 10 + + + ant12 + + + + bb_gain12 + 20 + + + bw12 + 0 + + + dc_offset_mode12 + 0 + + + corr12 + 0 + + + freq12 + 100e6 + + + gain_mode12 + False + + + if_gain12 + 20 + + + iq_balance_mode12 + 0 + + + gain12 + 10 + + + ant13 + + + + bb_gain13 + 20 + + + bw13 + 0 + + + dc_offset_mode13 + 0 + + + corr13 + 0 + + + freq13 + 100e6 + + + gain_mode13 + False + + + if_gain13 + 20 + + + iq_balance_mode13 + 0 + + + gain13 + 10 + + + ant14 + + + + bb_gain14 + 20 + + + bw14 + 0 + + + dc_offset_mode14 + 0 + + + corr14 + 0 + + + freq14 + 100e6 + + + gain_mode14 + False + + + if_gain14 + 20 + + + iq_balance_mode14 + 0 + + + gain14 + 10 + + + ant15 + + + + bb_gain15 + 20 + + + bw15 + 0 + + + dc_offset_mode15 + 0 + + + corr15 + 0 + + + freq15 + 100e6 + + + gain_mode15 + False + + + if_gain15 + 20 + + + iq_balance_mode15 + 0 + + + gain15 + 10 + + + ant16 + + + + bb_gain16 + 20 + + + bw16 + 0 + + + dc_offset_mode16 + 0 + + + corr16 + 0 + + + freq16 + 100e6 + + + gain_mode16 + False + + + if_gain16 + 20 + + + iq_balance_mode16 + 0 + + + gain16 + 10 + + + ant17 + + + + bb_gain17 + 20 + + + bw17 + 0 + + + dc_offset_mode17 + 0 + + + corr17 + 0 + + + freq17 + 100e6 + + + gain_mode17 + False + + + if_gain17 + 20 + + + iq_balance_mode17 + 0 + + + gain17 + 10 + + + ant18 + + + + bb_gain18 + 20 + + + bw18 + 0 + + + dc_offset_mode18 + 0 + + + corr18 + 0 + + + freq18 + 100e6 + + + gain_mode18 + False + + + if_gain18 + 20 + + + iq_balance_mode18 + 0 + + + gain18 + 10 + + + ant19 + + + + bb_gain19 + 20 + + + bw19 + 0 + + + dc_offset_mode19 + 0 + + + corr19 + 0 + + + freq19 + 100e6 + + + gain_mode19 + False + + + if_gain19 + 20 + + + iq_balance_mode19 + 0 + + + gain19 + 10 + + + ant1 + + + + bb_gain1 + 20 + + + bw1 + 0 + + + dc_offset_mode1 + 0 + + + corr1 + 0 + + + freq1 + 100e6 + + + gain_mode1 + False + + + if_gain1 + 20 + + + iq_balance_mode1 + 0 + + + gain1 + 10 + + + ant20 + + + + bb_gain20 + 20 + + + bw20 + 0 + + + dc_offset_mode20 + 0 + + + corr20 + 0 + + + freq20 + 100e6 + + + gain_mode20 + False + + + if_gain20 + 20 + + + iq_balance_mode20 + 0 + + + gain20 + 10 + + + ant21 + + + + bb_gain21 + 20 + + + bw21 + 0 + + + dc_offset_mode21 + 0 + + + corr21 + 0 + + + freq21 + 100e6 + + + gain_mode21 + False + + + if_gain21 + 20 + + + iq_balance_mode21 + 0 + + + gain21 + 10 + + + ant22 + + + + bb_gain22 + 20 + + + bw22 + 0 + + + dc_offset_mode22 + 0 + + + corr22 + 0 + + + freq22 + 100e6 + + + gain_mode22 + False + + + if_gain22 + 20 + + + iq_balance_mode22 + 0 + + + gain22 + 10 + + + ant23 + + + + bb_gain23 + 20 + + + bw23 + 0 + + + dc_offset_mode23 + 0 + + + corr23 + 0 + + + freq23 + 100e6 + + + gain_mode23 + False + + + if_gain23 + 20 + + + iq_balance_mode23 + 0 + + + gain23 + 10 + + + ant24 + + + + bb_gain24 + 20 + + + bw24 + 0 + + + dc_offset_mode24 + 0 + + + corr24 + 0 + + + freq24 + 100e6 + + + gain_mode24 + False + + + if_gain24 + 20 + + + iq_balance_mode24 + 0 + + + gain24 + 10 + + + ant25 + + + + bb_gain25 + 20 + + + bw25 + 0 + + + dc_offset_mode25 + 0 + + + corr25 + 0 + + + freq25 + 100e6 + + + gain_mode25 + False + + + if_gain25 + 20 + + + iq_balance_mode25 + 0 + + + gain25 + 10 + + + ant26 + + + + bb_gain26 + 20 + + + bw26 + 0 + + + dc_offset_mode26 + 0 + + + corr26 + 0 + + + freq26 + 100e6 + + + gain_mode26 + False + + + if_gain26 + 20 + + + iq_balance_mode26 + 0 + + + gain26 + 10 + + + ant27 + + + + bb_gain27 + 20 + + + bw27 + 0 + + + dc_offset_mode27 + 0 + + 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dc_offset_mode7 + 0 + + + corr7 + 0 + + + freq7 + 100e6 + + + gain_mode7 + False + + + if_gain7 + 20 + + + iq_balance_mode7 + 0 + + + gain7 + 10 + + + ant8 + + + + bb_gain8 + 20 + + + bw8 + 0 + + + dc_offset_mode8 + 0 + + + corr8 + 0 + + + freq8 + 100e6 + + + gain_mode8 + False + + + if_gain8 + 20 + + + iq_balance_mode8 + 0 + + + gain8 + 10 + + + ant9 + + + + bb_gain9 + 20 + + + bw9 + 0 + + + dc_offset_mode9 + 0 + + + corr9 + 0 + + + freq9 + 100e6 + + + gain_mode9 + False + + + if_gain9 + 20 + + + iq_balance_mode9 + 0 + + + gain9 + 10 + + + comment + + + + affinity + + + + args + satnogs.hw_rx_settings[rx_sdr_device]['dev_arg'] + + + _enabled + 1 + + + _coordinate + (16, 376) + + + _rotation + 0 + + + id + osmosdr_source_0 + + + maxoutbuf + 0 + + + clock_source0 + + + + time_source0 + + + + clock_source1 + + + + time_source1 + + + + clock_source2 + + + + time_source2 + + + + clock_source3 + + + + time_source3 + + + + clock_source4 + + + + time_source4 + + + + clock_source5 + + + + time_source5 + + + + clock_source6 + + + + time_source6 + + + + clock_source7 + + + + time_source7 + + + + minoutbuf + 0 + + + nchan + 1 + + + num_mboards + 1 + + + type + fc32 + + + sample_rate + samp_rate_rx + + + sync + + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (1104, 996) + + + _rotation + 0 + + + id + ppm + + + label + + + + short_id + + + + type + intx + + + value + 0 + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (472, 984) + + + _rotation + 0 + + + id + rigctl_port + + + label + + + + short_id + + + + type + intx + + + value + 4532 + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (616, 984) + + + _rotation + 0 + + + id + rx_freq + + + label + + + + short_id + + + + type + eng_float + + + value + 100e6 + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (312, 984) + + + _rotation + 0 + + + id + rx_sdr_device + + + label + + + + short_id + + + + type + string + + + value + usrpb200 + + + + satnogs_coarse_doppler_correction_cc + + alias + + + + comment + + + + affinity + + + + _enabled + 1 + + + _coordinate + (368, 404) + + + _rotation + 0 + + + id + satnogs_coarse_doppler_correction_cc_0 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + sampling_rate + samp_rate_rx + + + target_freq + rx_freq + + + + satnogs_doppler_correction_cc + + alias + + + + comment + + + + affinity + + + + corrections_per_sec + 1000 + + + _enabled + 0 + + + _coordinate + (360, 248) + + + _rotation + 0 + + + id + satnogs_doppler_correction_cc_0 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + sampling_rate + samp_rate_rx + + + target_freq + rx_freq + + + + satnogs_ogg_encoder + + alias + + + + comment + + + + affinity + + + + _enabled + True + + + filename + file_path + + + _coordinate + (680, 472) + + + _rotation + 180 + + + id + satnogs_ogg_encoder_0 + + + quality + 1.0 + + + samp_rate + audio_samp_rate + + + + satnogs_tcp_rigctl_msg_source + + alias + + + + comment + + + + affinity + + + + _enabled + 1 + + + _coordinate + (16, 204) + + + _rotation + 0 + + + id + satnogs_tcp_rigctl_msg_source_0 + + + addr + "127.0.0.1" + + + mtu + 1500 + + + maxoutbuf + 0 + + + minoutbuf + 0 + + + mode + False + + + port + rigctl_port + + + interval + 1000 + + + + satnogs_waterfall_sink + + alias + + + + center_freq + 0.0 + + + comment + + + + affinity + + + + _enabled + True + + + fft_size + 1024 + + + filename + waterfall_file_path + + + _coordinate + (1360, 248) + + + _rotation + 0 + + + id + satnogs_waterfall_sink_0 + + + mode + 1 + + + pps + 10 + + + samp_rate + audio_samp_rate + + + + parameter + + alias + + + + comment + + + + _enabled + True + + + _coordinate + (872, 988) + + + _rotation + 0 + + + id + waterfall_file_path + + + label + + + + short_id + + + + type + string + + + value + /tmp/waterfall.dat + + + + analog_agc2_xx_0_0 + blocks_multiply_xx_0 + 0 + 1 + + + analog_sig_source_x_0 + blocks_multiply_xx_0 + 0 + 0 + + + blks2_rational_resampler_xxx_1 + low_pass_filter_0 + 0 + 0 + + + blks2_rational_resampler_xxx_1 + satnogs_waterfall_sink_0 + 0 + 0 + + + blocks_complex_to_real_0 + satnogs_ogg_encoder_0 + 0 + 0 + + + blocks_multiply_xx_0 + blocks_complex_to_real_0 + 0 + 0 + + + freq_xlating_fir_filter_xxx_0 + blks2_rational_resampler_xxx_1 + 0 + 0 + + + low_pass_filter_0 + analog_agc2_xx_0_0 + 0 + 0 + + + osmosdr_source_0 + satnogs_coarse_doppler_correction_cc_0 + 0 + 0 + + + osmosdr_source_0 + satnogs_doppler_correction_cc_0 + 0 + 0 + + + satnogs_coarse_doppler_correction_cc_0 + freq_xlating_fir_filter_xxx_0 + 0 + 0 + + + satnogs_doppler_correction_cc_0 + freq_xlating_fir_filter_xxx_0 + 0 + 0 + + + satnogs_tcp_rigctl_msg_source_0 + satnogs_coarse_doppler_correction_cc_0 + freq + freq + + + satnogs_tcp_rigctl_msg_source_0 + satnogs_doppler_correction_cc_0 + freq + freq + + diff --git a/apps/flowgraphs/satnogs_bpsk_demod.py b/apps/flowgraphs/satnogs_bpsk_demod.py new file mode 100755 index 0000000..fb35253 --- /dev/null +++ b/apps/flowgraphs/satnogs_bpsk_demod.py @@ -0,0 +1,263 @@ +#!/usr/bin/env python2 +# -*- coding: utf-8 -*- +################################################## +# GNU Radio Python Flow Graph +# Title: FM Generic Demodulation +# Author: Manolis Surligas (surligas@gmail.com) +# Description: A generic FM demodulation block +# Generated: Sat Apr 22 18:57:53 2017 +################################################## + +from gnuradio import analog +from gnuradio import blocks +from gnuradio import eng_notation +from gnuradio import filter +from gnuradio import gr +from gnuradio.eng_option import eng_option +from gnuradio.filter import firdes +from optparse import OptionParser +import osmosdr +import satnogs +import time + + +class satnogs_fm_demod(gr.top_block): + + def __init__(self, cw_offset=1500, doppler_correction_per_sec=1000, file_path='test.wav', lo_offset=100e3, ppm=0, rigctl_port=4532, rx_freq=100e6, rx_sdr_device='usrpb200', waterfall_file_path='/tmp/waterfall.dat'): + gr.top_block.__init__(self, "USB Generic Demodulation") + + ################################################## + # Parameters + ################################################## + self.cw_offset = cw_offset + self.doppler_correction_per_sec = doppler_correction_per_sec + self.file_path = file_path + self.lo_offset = lo_offset + self.ppm = ppm + self.rigctl_port = rigctl_port + self.rx_freq = rx_freq + self.rx_sdr_device = rx_sdr_device + self.waterfall_file_path = waterfall_file_path + + ################################################## + # Variables + ################################################## + self.samp_rate_rx = samp_rate_rx = satnogs.hw_rx_settings[rx_sdr_device]['samp_rate'] + self.xlate_filter_taps = xlate_filter_taps = firdes.low_pass(1, samp_rate_rx, 125000, 25000, firdes.WIN_HAMMING, 6.76) + + self.taps = taps = firdes.low_pass(12.0, samp_rate_rx, 100e3, 60000, firdes.WIN_HAMMING, 6.76) + + self.filter_rate = filter_rate = 250000 + self.deviation = deviation = 5000 + self.audio_samp_rate = audio_samp_rate = 48000 + self.audio_gain = audio_gain = satnogs.fm_demod_settings[rx_sdr_device]['audio_gain'] + + ################################################## + # Blocks + ################################################## + self.satnogs_waterfall_sink_0 = satnogs.waterfall_sink(audio_samp_rate, 0.0, 10, 1024, waterfall_file_path, 1) + self.satnogs_tcp_rigctl_msg_source_0 = satnogs.tcp_rigctl_msg_source("127.0.0.1", rigctl_port, False, 1000, 1500) + self.satnogs_ogg_encoder_0 = satnogs.ogg_encoder(file_path, audio_samp_rate, 1.0) + self.satnogs_coarse_doppler_correction_cc_0 = satnogs.coarse_doppler_correction_cc(rx_freq, samp_rate_rx) + self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + satnogs.hw_rx_settings[rx_sdr_device]['dev_arg'] ) + self.osmosdr_source_0.set_sample_rate(samp_rate_rx) + self.osmosdr_source_0.set_center_freq(rx_freq - lo_offset, 0) + self.osmosdr_source_0.set_freq_corr(ppm, 0) + self.osmosdr_source_0.set_dc_offset_mode(2, 0) + self.osmosdr_source_0.set_iq_balance_mode(0, 0) + self.osmosdr_source_0.set_gain_mode(False, 0) + self.osmosdr_source_0.set_gain(satnogs.hw_rx_settings[rx_sdr_device]['rf_gain'], 0) + self.osmosdr_source_0.set_if_gain(satnogs.hw_rx_settings[rx_sdr_device]['if_gain'], 0) + self.osmosdr_source_0.set_bb_gain(satnogs.hw_rx_settings[rx_sdr_device]['bb_gain'], 0) + self.osmosdr_source_0.set_antenna(satnogs.hw_rx_settings[rx_sdr_device]['antenna'], 0) + self.osmosdr_source_0.set_bandwidth(samp_rate_rx, 0) + + self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass( + 1, audio_samp_rate, 2000, 1000, firdes.WIN_HAMMING, 6.76)) + self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(int(samp_rate_rx/filter_rate), (xlate_filter_taps), lo_offset, samp_rate_rx) + self.blocks_multiply_xx_0 = blocks.multiply_vcc(1) + self.blocks_complex_to_real_0 = blocks.complex_to_real(1) + self.blks2_rational_resampler_xxx_1 = filter.rational_resampler_ccc( + interpolation=24, + decimation=125, + taps=None, + fractional_bw=None, + ) + self.analog_sig_source_x_0 = analog.sig_source_c(audio_samp_rate, analog.GR_COS_WAVE, cw_offset, 1, 0) + self.analog_agc2_xx_0_0 = analog.agc2_cc(0.01, 0.001, 0.015, 0.0) + self.analog_agc2_xx_0_0.set_max_gain(65536) + + ################################################## + # Connections + ################################################## + self.msg_connect((self.satnogs_tcp_rigctl_msg_source_0, 'freq'), (self.satnogs_coarse_doppler_correction_cc_0, 'freq')) + self.connect((self.analog_agc2_xx_0_0, 0), (self.blocks_multiply_xx_0, 1)) + self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 0)) + self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.low_pass_filter_0, 0)) + self.connect((self.blks2_rational_resampler_xxx_1, 0), (self.satnogs_waterfall_sink_0, 0)) + self.connect((self.blocks_complex_to_real_0, 0), (self.satnogs_ogg_encoder_0, 0)) + self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_complex_to_real_0, 0)) + self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blks2_rational_resampler_xxx_1, 0)) + self.connect((self.low_pass_filter_0, 0), (self.analog_agc2_xx_0_0, 0)) + self.connect((self.osmosdr_source_0, 0), (self.satnogs_coarse_doppler_correction_cc_0, 0)) + self.connect((self.satnogs_coarse_doppler_correction_cc_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0)) + + def get_cw_offset(self): + return self.cw_offset + + def set_cw_offset(self, cw_offset): + self.cw_offset = cw_offset + self.analog_sig_source_x_0.set_frequency(self.cw_offset) + + def get_doppler_correction_per_sec(self): + return self.doppler_correction_per_sec + + def set_doppler_correction_per_sec(self, doppler_correction_per_sec): + self.doppler_correction_per_sec = doppler_correction_per_sec + + def get_file_path(self): + return self.file_path + + def set_file_path(self, file_path): + self.file_path = file_path + + def get_lo_offset(self): + return self.lo_offset + + def set_lo_offset(self, lo_offset): + self.lo_offset = lo_offset + self.osmosdr_source_0.set_center_freq(self.rx_freq - self.lo_offset, 0) + self.freq_xlating_fir_filter_xxx_0.set_center_freq(self.lo_offset) + + def get_ppm(self): + return self.ppm + + def set_ppm(self, ppm): + self.ppm = ppm + self.osmosdr_source_0.set_freq_corr(self.ppm, 0) + + def get_rigctl_port(self): + return self.rigctl_port + + def set_rigctl_port(self, rigctl_port): + self.rigctl_port = rigctl_port + + def get_rx_freq(self): + return self.rx_freq + + def set_rx_freq(self, rx_freq): + self.rx_freq = rx_freq + self.satnogs_coarse_doppler_correction_cc_0.set_new_freq_locked(self.rx_freq) + self.osmosdr_source_0.set_center_freq(self.rx_freq - self.lo_offset, 0) + + def get_rx_sdr_device(self): + return self.rx_sdr_device + + def set_rx_sdr_device(self, rx_sdr_device): + self.rx_sdr_device = rx_sdr_device + self.set_samp_rate_rx(satnogs.hw_rx_settings[self.rx_sdr_device]['samp_rate']) + self.osmosdr_source_0.set_gain(satnogs.hw_rx_settings[self.rx_sdr_device]['rf_gain'], 0) + self.osmosdr_source_0.set_if_gain(satnogs.hw_rx_settings[self.rx_sdr_device]['if_gain'], 0) + self.osmosdr_source_0.set_bb_gain(satnogs.hw_rx_settings[self.rx_sdr_device]['bb_gain'], 0) + self.osmosdr_source_0.set_antenna(satnogs.hw_rx_settings[self.rx_sdr_device]['antenna'], 0) + self.set_audio_gain(satnogs.fm_demod_settings[self.rx_sdr_device]['audio_gain']) + + def get_waterfall_file_path(self): + return self.waterfall_file_path + + def set_waterfall_file_path(self, waterfall_file_path): + self.waterfall_file_path = waterfall_file_path + + def get_samp_rate_rx(self): + return self.samp_rate_rx + + def set_samp_rate_rx(self, samp_rate_rx): + self.samp_rate_rx = samp_rate_rx + self.set_xlate_filter_taps(firdes.low_pass(1, self.samp_rate_rx, 125000, 25000, firdes.WIN_HAMMING, 6.76)) + self.osmosdr_source_0.set_sample_rate(self.samp_rate_rx) + self.osmosdr_source_0.set_bandwidth(self.samp_rate_rx, 0) + + def get_xlate_filter_taps(self): + return self.xlate_filter_taps + + def set_xlate_filter_taps(self, xlate_filter_taps): + self.xlate_filter_taps = xlate_filter_taps + self.freq_xlating_fir_filter_xxx_0.set_taps((self.xlate_filter_taps)) + + def get_taps(self): + return self.taps + + def set_taps(self, taps): + self.taps = taps + + def get_filter_rate(self): + return self.filter_rate + + def set_filter_rate(self, filter_rate): + self.filter_rate = filter_rate + + def get_deviation(self): + return self.deviation + + def set_deviation(self, deviation): + self.deviation = deviation + + def get_audio_samp_rate(self): + return self.audio_samp_rate + + def set_audio_samp_rate(self, audio_samp_rate): + self.audio_samp_rate = audio_samp_rate + self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.audio_samp_rate, 2000, 1000, firdes.WIN_HAMMING, 6.76)) + self.analog_sig_source_x_0.set_sampling_freq(self.audio_samp_rate) + + def get_audio_gain(self): + return self.audio_gain + + def set_audio_gain(self, audio_gain): + self.audio_gain = audio_gain + + +def argument_parser(): + description = 'A generic FM demodulation block' + parser = OptionParser(usage="%prog: [options]", option_class=eng_option, description=description) + parser.add_option( + "", "--cw-offset", dest="cw_offset", type="eng_float", default=eng_notation.num_to_str(1500), + help="Set cw_offset [default=%default]") + parser.add_option( + "", "--doppler-correction-per-sec", dest="doppler_correction_per_sec", type="intx", default=1000, + help="Set doppler_correction_per_sec [default=%default]") + parser.add_option( + "", "--file-path", dest="file_path", type="string", default='test.wav', + help="Set file_path [default=%default]") + parser.add_option( + "", "--lo-offset", dest="lo_offset", type="eng_float", default=eng_notation.num_to_str(100e3), + help="Set lo_offset [default=%default]") + parser.add_option( + "", "--ppm", dest="ppm", type="intx", default=0, + help="Set ppm [default=%default]") + parser.add_option( + "", "--rigctl-port", dest="rigctl_port", type="intx", default=4532, + help="Set rigctl_port [default=%default]") + parser.add_option( + "", "--rx-freq", dest="rx_freq", type="eng_float", default=eng_notation.num_to_str(100e6), + help="Set rx_freq [default=%default]") + parser.add_option( + "", "--rx-sdr-device", dest="rx_sdr_device", type="string", default='usrpb200', + help="Set rx_sdr_device [default=%default]") + parser.add_option( + "", "--waterfall-file-path", dest="waterfall_file_path", type="string", default='/tmp/waterfall.dat', + help="Set waterfall_file_path [default=%default]") + return parser + + +def main(top_block_cls=satnogs_fm_demod, options=None): + if options is None: + options, _ = argument_parser().parse_args() + + tb = top_block_cls(cw_offset=options.cw_offset, doppler_correction_per_sec=options.doppler_correction_per_sec, file_path=options.file_path, lo_offset=options.lo_offset, ppm=options.ppm, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, rx_sdr_device=options.rx_sdr_device, waterfall_file_path=options.waterfall_file_path) + tb.start() + tb.wait() + + +if __name__ == '__main__': + main()