404 lines
20 KiB
Python
Executable File
404 lines
20 KiB
Python
Executable File
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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##################################################
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# GNU Radio Python Flow Graph
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# Title: CW Decoder
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# Author: Manolis Surligas (surligas@gmail.com)
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# Description: A CW (Morse) Decoder
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# Generated: Sun Jan 6 13:47:58 2019
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##################################################
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from gnuradio import analog
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from gnuradio import blocks
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from gnuradio import eng_notation
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from gnuradio import filter
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from gnuradio import gr
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from gnuradio.eng_option import eng_option
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from gnuradio.filter import firdes
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from gnuradio.filter import pfb
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from optparse import OptionParser
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import math
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import osmosdr
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import satnogs
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import time
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class satnogs_cw_decoder(gr.top_block):
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def __init__(self, antenna=satnogs.not_set_antenna, bb_gain=satnogs.not_set_rx_bb_gain, bfo_freq=1e3, decoded_data_file_path='/tmp/.satnogs/data/data', dev_args=satnogs.not_set_dev_args, doppler_correction_per_sec=1000, enable_iq_dump=0, file_path='test.txt', if_gain=satnogs.not_set_rx_if_gain, iq_file_path='/tmp/iq.dat', lo_offset=100e3, ppm=0, rf_gain=satnogs.not_set_rx_rf_gain, rigctl_port=4532, rx_freq=100e6, rx_sdr_device='usrpb200', samp_rate_rx=satnogs.not_set_samp_rate_rx, udp_IP='127.0.0.1', udp_port=16887, waterfall_file_path='/tmp/waterfall.dat', wpm=20):
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gr.top_block.__init__(self, "CW Decoder")
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##################################################
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# Parameters
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##################################################
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self.antenna = antenna
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self.bb_gain = bb_gain
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self.bfo_freq = bfo_freq
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self.decoded_data_file_path = decoded_data_file_path
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self.dev_args = dev_args
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self.doppler_correction_per_sec = doppler_correction_per_sec
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self.enable_iq_dump = enable_iq_dump
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self.file_path = file_path
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self.if_gain = if_gain
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self.iq_file_path = iq_file_path
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self.lo_offset = lo_offset
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self.ppm = ppm
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self.rf_gain = rf_gain
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self.rigctl_port = rigctl_port
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self.rx_freq = rx_freq
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self.rx_sdr_device = rx_sdr_device
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self.samp_rate_rx = samp_rate_rx
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self.udp_IP = udp_IP
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self.udp_port = udp_port
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self.waterfall_file_path = waterfall_file_path
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self.wpm = wpm
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##################################################
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# Variables
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##################################################
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self.audio_samp_rate = audio_samp_rate = 48000
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self.dot_samples = dot_samples = int((1.2 / wpm) / (1.0 / (audio_samp_rate / 10.0)))
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self.dec = dec = 8
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##################################################
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# Blocks
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##################################################
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self.satnogs_waterfall_sink_0 = satnogs.waterfall_sink(audio_samp_rate, 0.0, 10, 1024, waterfall_file_path, 1)
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self.satnogs_udp_msg_sink_0_0 = satnogs.udp_msg_sink(udp_IP, udp_port, 1500)
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self.satnogs_tcp_rigctl_msg_source_0 = satnogs.tcp_rigctl_msg_source("127.0.0.1", rigctl_port, False, 1000, 1500)
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self.satnogs_ogg_encoder_0 = satnogs.ogg_encoder(file_path, audio_samp_rate, 1.0)
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self.satnogs_morse_decoder_0 = satnogs.morse_decoder(ord('#'), 3)
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self.satnogs_iq_sink_0 = satnogs.iq_sink(16768, iq_file_path, False, enable_iq_dump)
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self.satnogs_frame_file_sink_0_0 = satnogs.frame_file_sink(decoded_data_file_path, 0)
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self.satnogs_cw_to_symbol_0 = satnogs.cw_to_symbol(audio_samp_rate/10.0, 2.0, 0.90, wpm, dot_samples/dec)
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self.satnogs_coarse_doppler_correction_cc_0 = satnogs.coarse_doppler_correction_cc(rx_freq, satnogs.handle_samp_rate_rx(rx_sdr_device, samp_rate_rx))
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self.pfb_arb_resampler_xxx_0 = pfb.arb_resampler_ccf(
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audio_samp_rate/satnogs.handle_samp_rate_rx(rx_sdr_device, samp_rate_rx),
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taps=None,
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flt_size=32)
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self.pfb_arb_resampler_xxx_0.declare_sample_delay(0)
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self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + satnogs.handle_rx_dev_args(rx_sdr_device, dev_args) )
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self.osmosdr_source_0.set_sample_rate(satnogs.handle_samp_rate_rx(rx_sdr_device, samp_rate_rx))
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self.osmosdr_source_0.set_center_freq(rx_freq - lo_offset, 0)
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self.osmosdr_source_0.set_freq_corr(ppm, 0)
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self.osmosdr_source_0.set_dc_offset_mode(2, 0)
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self.osmosdr_source_0.set_iq_balance_mode(0, 0)
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self.osmosdr_source_0.set_gain_mode(False, 0)
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self.osmosdr_source_0.set_gain(satnogs.handle_rx_rf_gain(rx_sdr_device, rf_gain), 0)
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self.osmosdr_source_0.set_if_gain(satnogs.handle_rx_if_gain(rx_sdr_device, if_gain), 0)
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self.osmosdr_source_0.set_bb_gain(satnogs.handle_rx_bb_gain(rx_sdr_device, bb_gain), 0)
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self.osmosdr_source_0.set_antenna(satnogs.handle_rx_antenna(rx_sdr_device, antenna), 0)
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self.osmosdr_source_0.set_bandwidth(satnogs.handle_samp_rate_rx(rx_sdr_device, samp_rate_rx), 0)
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self.low_pass_filter_0_0_0 = filter.fir_filter_ccf(1, firdes.low_pass(
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1, audio_samp_rate, 2500, 0.8e3, firdes.WIN_HAMMING, 6.76))
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self.low_pass_filter_0_0 = filter.fir_filter_ccf(10, firdes.low_pass(
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1, audio_samp_rate, 2500, 0.4e3, firdes.WIN_HAMMING, 6.76))
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self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass(
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1, audio_samp_rate/10, 200, 0.1e3, firdes.WIN_HAMMING, 6.76))
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self.fir_filter_xxx_0 = filter.fir_filter_ccc(1, ([1.0] * (int(dot_samples)/dec)))
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self.fir_filter_xxx_0.declare_sample_delay(0)
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self.blocks_rotator_cc_0 = blocks.rotator_cc(-2.0 * math.pi * (lo_offset / satnogs.handle_samp_rate_rx(rx_sdr_device, samp_rate_rx)))
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self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
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self.blocks_multiply_conjugate_cc_0 = blocks.multiply_conjugate_cc(1)
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self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex*1, int(dot_samples)/dec)
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self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
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self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
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self.analog_sig_source_x_0 = analog.sig_source_c(audio_samp_rate, analog.GR_COS_WAVE, bfo_freq, 1, 0)
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self.analog_pll_carriertracking_cc_0 = analog.pll_carriertracking_cc(2*math.pi/100, 2*math.pi*2500, -2*math.pi*2500)
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self.analog_agc2_xx_0_0 = analog.agc2_cc(0.01, 0.001, 0.015, 0.0)
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self.analog_agc2_xx_0_0.set_max_gain(65536)
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self.analog_agc2_xx_0 = analog.agc2_cc(1e-4, 1e-4, 1.0, 1.0)
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self.analog_agc2_xx_0.set_max_gain(65536)
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##################################################
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# Connections
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##################################################
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self.msg_connect((self.satnogs_cw_to_symbol_0, 'out'), (self.satnogs_morse_decoder_0, 'in'))
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self.msg_connect((self.satnogs_morse_decoder_0, 'out'), (self.satnogs_frame_file_sink_0_0, 'frame'))
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self.msg_connect((self.satnogs_morse_decoder_0, 'out'), (self.satnogs_udp_msg_sink_0_0, 'in'))
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self.msg_connect((self.satnogs_tcp_rigctl_msg_source_0, 'freq'), (self.satnogs_coarse_doppler_correction_cc_0, 'freq'))
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self.connect((self.analog_agc2_xx_0, 0), (self.low_pass_filter_0_0, 0))
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self.connect((self.analog_agc2_xx_0_0, 0), (self.blocks_multiply_xx_0, 1))
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self.connect((self.analog_pll_carriertracking_cc_0, 0), (self.low_pass_filter_0, 0))
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self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 0))
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self.connect((self.blocks_complex_to_mag_0, 0), (self.satnogs_cw_to_symbol_0, 0))
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self.connect((self.blocks_complex_to_real_0, 0), (self.satnogs_ogg_encoder_0, 0))
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self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_conjugate_cc_0, 1))
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self.connect((self.blocks_multiply_conjugate_cc_0, 0), (self.fir_filter_xxx_0, 0))
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self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_complex_to_real_0, 0))
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self.connect((self.blocks_rotator_cc_0, 0), (self.satnogs_coarse_doppler_correction_cc_0, 0))
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self.connect((self.fir_filter_xxx_0, 0), (self.blocks_complex_to_mag_0, 0))
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self.connect((self.low_pass_filter_0, 0), (self.blocks_delay_0, 0))
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self.connect((self.low_pass_filter_0, 0), (self.blocks_multiply_conjugate_cc_0, 0))
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self.connect((self.low_pass_filter_0_0, 0), (self.analog_pll_carriertracking_cc_0, 0))
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self.connect((self.low_pass_filter_0_0_0, 0), (self.analog_agc2_xx_0_0, 0))
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self.connect((self.osmosdr_source_0, 0), (self.blocks_rotator_cc_0, 0))
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self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.analog_agc2_xx_0, 0))
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self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.low_pass_filter_0_0_0, 0))
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self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.satnogs_iq_sink_0, 0))
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self.connect((self.pfb_arb_resampler_xxx_0, 0), (self.satnogs_waterfall_sink_0, 0))
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self.connect((self.satnogs_coarse_doppler_correction_cc_0, 0), (self.pfb_arb_resampler_xxx_0, 0))
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def get_antenna(self):
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return self.antenna
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def set_antenna(self, antenna):
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self.antenna = antenna
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self.osmosdr_source_0.set_antenna(satnogs.handle_rx_antenna(self.rx_sdr_device, self.antenna), 0)
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def get_bb_gain(self):
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return self.bb_gain
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def set_bb_gain(self, bb_gain):
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self.bb_gain = bb_gain
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self.osmosdr_source_0.set_bb_gain(satnogs.handle_rx_bb_gain(self.rx_sdr_device, self.bb_gain), 0)
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def get_bfo_freq(self):
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return self.bfo_freq
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def set_bfo_freq(self, bfo_freq):
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self.bfo_freq = bfo_freq
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self.analog_sig_source_x_0.set_frequency(self.bfo_freq)
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def get_decoded_data_file_path(self):
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return self.decoded_data_file_path
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def set_decoded_data_file_path(self, decoded_data_file_path):
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self.decoded_data_file_path = decoded_data_file_path
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def get_dev_args(self):
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return self.dev_args
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def set_dev_args(self, dev_args):
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self.dev_args = dev_args
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def get_doppler_correction_per_sec(self):
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return self.doppler_correction_per_sec
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def set_doppler_correction_per_sec(self, doppler_correction_per_sec):
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self.doppler_correction_per_sec = doppler_correction_per_sec
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def get_enable_iq_dump(self):
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return self.enable_iq_dump
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def set_enable_iq_dump(self, enable_iq_dump):
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self.enable_iq_dump = enable_iq_dump
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def get_file_path(self):
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return self.file_path
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def set_file_path(self, file_path):
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self.file_path = file_path
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def get_if_gain(self):
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return self.if_gain
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def set_if_gain(self, if_gain):
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self.if_gain = if_gain
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self.osmosdr_source_0.set_if_gain(satnogs.handle_rx_if_gain(self.rx_sdr_device, self.if_gain), 0)
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def get_iq_file_path(self):
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return self.iq_file_path
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def set_iq_file_path(self, iq_file_path):
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self.iq_file_path = iq_file_path
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def get_lo_offset(self):
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return self.lo_offset
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def set_lo_offset(self, lo_offset):
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self.lo_offset = lo_offset
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self.osmosdr_source_0.set_center_freq(self.rx_freq - self.lo_offset, 0)
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self.blocks_rotator_cc_0.set_phase_inc(-2.0 * math.pi * (self.lo_offset / satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx)))
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def get_ppm(self):
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return self.ppm
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def set_ppm(self, ppm):
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self.ppm = ppm
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self.osmosdr_source_0.set_freq_corr(self.ppm, 0)
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def get_rf_gain(self):
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return self.rf_gain
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def set_rf_gain(self, rf_gain):
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self.rf_gain = rf_gain
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self.osmosdr_source_0.set_gain(satnogs.handle_rx_rf_gain(self.rx_sdr_device, self.rf_gain), 0)
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def get_rigctl_port(self):
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return self.rigctl_port
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def set_rigctl_port(self, rigctl_port):
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self.rigctl_port = rigctl_port
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def get_rx_freq(self):
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return self.rx_freq
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def set_rx_freq(self, rx_freq):
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self.rx_freq = rx_freq
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self.satnogs_coarse_doppler_correction_cc_0.set_new_freq_locked(self.rx_freq)
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self.osmosdr_source_0.set_center_freq(self.rx_freq - self.lo_offset, 0)
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def get_rx_sdr_device(self):
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return self.rx_sdr_device
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def set_rx_sdr_device(self, rx_sdr_device):
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self.rx_sdr_device = rx_sdr_device
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self.pfb_arb_resampler_xxx_0.set_rate(self.audio_samp_rate/satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx))
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self.osmosdr_source_0.set_sample_rate(satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx))
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self.osmosdr_source_0.set_gain(satnogs.handle_rx_rf_gain(self.rx_sdr_device, self.rf_gain), 0)
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self.osmosdr_source_0.set_if_gain(satnogs.handle_rx_if_gain(self.rx_sdr_device, self.if_gain), 0)
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self.osmosdr_source_0.set_bb_gain(satnogs.handle_rx_bb_gain(self.rx_sdr_device, self.bb_gain), 0)
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self.osmosdr_source_0.set_antenna(satnogs.handle_rx_antenna(self.rx_sdr_device, self.antenna), 0)
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self.osmosdr_source_0.set_bandwidth(satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx), 0)
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self.blocks_rotator_cc_0.set_phase_inc(-2.0 * math.pi * (self.lo_offset / satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx)))
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def get_samp_rate_rx(self):
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return self.samp_rate_rx
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def set_samp_rate_rx(self, samp_rate_rx):
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self.samp_rate_rx = samp_rate_rx
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self.pfb_arb_resampler_xxx_0.set_rate(self.audio_samp_rate/satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx))
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self.osmosdr_source_0.set_sample_rate(satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx))
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self.osmosdr_source_0.set_bandwidth(satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx), 0)
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self.blocks_rotator_cc_0.set_phase_inc(-2.0 * math.pi * (self.lo_offset / satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx)))
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def get_udp_IP(self):
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return self.udp_IP
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def set_udp_IP(self, udp_IP):
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self.udp_IP = udp_IP
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def get_udp_port(self):
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return self.udp_port
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def set_udp_port(self, udp_port):
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self.udp_port = udp_port
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def get_waterfall_file_path(self):
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return self.waterfall_file_path
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def set_waterfall_file_path(self, waterfall_file_path):
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self.waterfall_file_path = waterfall_file_path
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def get_wpm(self):
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return self.wpm
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def set_wpm(self, wpm):
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self.wpm = wpm
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self.set_dot_samples(int((1.2 / self.wpm) / (1.0 / (self.audio_samp_rate / 10.0))))
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def get_audio_samp_rate(self):
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return self.audio_samp_rate
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def set_audio_samp_rate(self, audio_samp_rate):
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self.audio_samp_rate = audio_samp_rate
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self.set_dot_samples(int((1.2 / self.wpm) / (1.0 / (self.audio_samp_rate / 10.0))))
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self.pfb_arb_resampler_xxx_0.set_rate(self.audio_samp_rate/satnogs.handle_samp_rate_rx(self.rx_sdr_device, self.samp_rate_rx))
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self.low_pass_filter_0_0_0.set_taps(firdes.low_pass(1, self.audio_samp_rate, 2500, 0.8e3, firdes.WIN_HAMMING, 6.76))
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self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.audio_samp_rate, 2500, 0.4e3, firdes.WIN_HAMMING, 6.76))
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self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.audio_samp_rate/10, 200, 0.1e3, firdes.WIN_HAMMING, 6.76))
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self.analog_sig_source_x_0.set_sampling_freq(self.audio_samp_rate)
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def get_dot_samples(self):
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return self.dot_samples
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def set_dot_samples(self, dot_samples):
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self.dot_samples = dot_samples
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self.fir_filter_xxx_0.set_taps(([1.0] * (int(self.dot_samples)/self.dec)))
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self.blocks_delay_0.set_dly(int(self.dot_samples)/self.dec)
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def get_dec(self):
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return self.dec
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def set_dec(self, dec):
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self.dec = dec
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self.fir_filter_xxx_0.set_taps(([1.0] * (int(self.dot_samples)/self.dec)))
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self.blocks_delay_0.set_dly(int(self.dot_samples)/self.dec)
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|
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def argument_parser():
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description = 'A CW (Morse) Decoder'
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parser = OptionParser(usage="%prog: [options]", option_class=eng_option, description=description)
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parser.add_option(
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"", "--antenna", dest="antenna", type="string", default=satnogs.not_set_antenna,
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help="Set antenna [default=%default]")
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parser.add_option(
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"", "--bb-gain", dest="bb_gain", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_rx_bb_gain),
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help="Set bb_gain [default=%default]")
|
|
parser.add_option(
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|
"", "--bfo-freq", dest="bfo_freq", type="eng_float", default=eng_notation.num_to_str(1e3),
|
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help="Set bfo_freq [default=%default]")
|
|
parser.add_option(
|
|
"", "--decoded-data-file-path", dest="decoded_data_file_path", type="string", default='/tmp/.satnogs/data/data',
|
|
help="Set decoded_data_file_path [default=%default]")
|
|
parser.add_option(
|
|
"", "--dev-args", dest="dev_args", type="string", default=satnogs.not_set_dev_args,
|
|
help="Set dev_args [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(
|
|
"", "--enable-iq-dump", dest="enable_iq_dump", type="intx", default=0,
|
|
help="Set enable_iq_dump [default=%default]")
|
|
parser.add_option(
|
|
"", "--file-path", dest="file_path", type="string", default='test.txt',
|
|
help="Set file_path [default=%default]")
|
|
parser.add_option(
|
|
"", "--if-gain", dest="if_gain", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_rx_if_gain),
|
|
help="Set if_gain [default=%default]")
|
|
parser.add_option(
|
|
"", "--iq-file-path", dest="iq_file_path", type="string", default='/tmp/iq.dat',
|
|
help="Set iq_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(
|
|
"", "--rf-gain", dest="rf_gain", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_rx_rf_gain),
|
|
help="Set rf_gain [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(
|
|
"", "--samp-rate-rx", dest="samp_rate_rx", type="eng_float", default=eng_notation.num_to_str(satnogs.not_set_samp_rate_rx),
|
|
help="Set samp_rate_rx [default=%default]")
|
|
parser.add_option(
|
|
"", "--udp-IP", dest="udp_IP", type="string", default='127.0.0.1',
|
|
help="Set udp_IP [default=%default]")
|
|
parser.add_option(
|
|
"", "--udp-port", dest="udp_port", type="intx", default=16887,
|
|
help="Set udp_port [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]")
|
|
parser.add_option(
|
|
"", "--wpm", dest="wpm", type="intx", default=20,
|
|
help="Set wpm [default=%default]")
|
|
return parser
|
|
|
|
|
|
def main(top_block_cls=satnogs_cw_decoder, options=None):
|
|
if options is None:
|
|
options, _ = argument_parser().parse_args()
|
|
|
|
tb = top_block_cls(antenna=options.antenna, bb_gain=options.bb_gain, bfo_freq=options.bfo_freq, decoded_data_file_path=options.decoded_data_file_path, dev_args=options.dev_args, doppler_correction_per_sec=options.doppler_correction_per_sec, enable_iq_dump=options.enable_iq_dump, file_path=options.file_path, if_gain=options.if_gain, iq_file_path=options.iq_file_path, lo_offset=options.lo_offset, ppm=options.ppm, rf_gain=options.rf_gain, rigctl_port=options.rigctl_port, rx_freq=options.rx_freq, rx_sdr_device=options.rx_sdr_device, samp_rate_rx=options.samp_rate_rx, udp_IP=options.udp_IP, udp_port=options.udp_port, waterfall_file_path=options.waterfall_file_path, wpm=options.wpm)
|
|
tb.start()
|
|
tb.wait()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|