def set_bphi_4(self, bphi_4):
self.bphi_4 = bphi_4
self.band_pass_filter_0_0_0_0_0_0.set_taps(firdes.band_pass(1, self.bpsr, self.bplow_4, self.bphi_4, self.bptrans, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0_0_0_0_0_0.set_taps(firdes.band_pass(1, self.bpsr, self.bplow_4, self.bphi_4, self.bptrans, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0_0_0_0_0_0_0.set_taps(firdes.band_pass(1, self.bpsr, self.bplow_4, self.bphi_4, self.bptrans, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0_0_0_0_0_0_1.set_taps(firdes.band_pass(1, self.bpsr, self.bplow_4, self.bphi_4, self.bptrans, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0_0_0_0_0_0_2.set_taps(firdes.band_pass(1, self.bpsr, self.bplow_4, self.bphi_4, self.bptrans, firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, 1e5, 1e6, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0.set_taps(firdes.band_pass(1, self.samp_rate, 54e3, 60e3, 3e3, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, 18.5e3, 19.5e3, 3e3, firdes.WIN_HAMMING, 6.76))
self.wxgui_scopesink2_0.set_sample_rate(self.samp_rate)
self.wxgui_waterfallsink2_0.set_sample_rate(self.samp_rate)
self.rtlsdr_source_1.set_sample_rate(self.samp_rate)
def set_baseband_rate(self, baseband_rate):
self.baseband_rate = baseband_rate
self.set_rds_samp_rate(self.baseband_rate / self.rds_dec)
self.analog_pll_refout_cc_0.set_max_freq(2 * cmath.pi * (19000+200) / self.baseband_rate)
self.analog_pll_refout_cc_0.set_min_freq(2 * cmath.pi * (19000-200) / self.baseband_rate)
self.band_pass_filter_0.set_taps(firdes.complex_band_pass(1, self.baseband_rate, self.pilot_tone - 0.5e3, self.pilot_tone+0.5e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0.set_taps(firdes.band_pass(1, self.baseband_rate, 23e3, 53e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_1.set_taps(firdes.band_pass(1, self.baseband_rate, self.stereo_subcarrier - 0.5e3, self.stereo_subcarrier + 0.5e3, 0.5e3, firdes.WIN_HAMMING, 6.76))
self.freq_xlating_fir_filter_xxx_1.set_taps((firdes.low_pass(2500,self.baseband_rate,self.rds_bandwidth,1e3,firdes.WIN_HAMMING)))
self.low_pass_filter_1.set_taps(firdes.low_pass(10, self.baseband_rate, 15e3, 3e3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_2.set_taps(firdes.low_pass(1, self.baseband_rate, 16e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_4.set_taps(firdes.low_pass(1, self.baseband_rate, 60e3, 1e3, firdes.WIN_HAMMING, 6.76))
self.qtgui_freq_sink_x_0_0.set_frequency_range(0, self.baseband_rate)
self.qtgui_freq_sink_x_0_1_0_0.set_frequency_range(0, self.baseband_rate)
self.qtgui_time_sink_x_0.set_samp_rate(self.baseband_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_waterfallsink2_0.set_sample_rate(self.samp_rate)
self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, 10, 4.5e3, 20, firdes.WIN_HAMMING, 6.76))
self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
def set_input_samp_rate(self, input_samp_rate):
self.input_samp_rate = input_samp_rate
self.band_pass_filter_0_0.set_taps(
firdes.band_pass(800, self.input_samp_rate,
self.tone_freq - self.tone_bandpass_width,
self.tone_freq + self.tone_bandpass_width,
self.tone_bandpass_width, firdes.WIN_HAMMING,
6.76))
self.freq_xlating_fir_filter_xxx_0_0.set_taps(
(firdes.low_pass(10000, self.input_samp_rate, 500, 500)))
self.low_pass_filter_0.set_taps(
firdes.low_pass(1, self.input_samp_rate,
self.am_demod_lowpass_cutoff,
self.am_demod_lowpass_width, firdes.WIN_HAMMING,
6.76))
self.freq_xlating_fir_filter_xxx_0.set_taps(
(firdes.low_pass(1000, self.input_samp_rate,
self.fm_lowpass_cutoff, self.fm_lowpass_width)))
self.blocks_throttle_0.set_sample_rate(self.input_samp_rate)
self.analog_pll_carriertracking_cc_0_0.set_max_freq(
utility.hz_to_rad_per_sample(self.pll_tracking_range,
self.input_samp_rate))
self.analog_pll_carriertracking_cc_0_0.set_min_freq(
utility.hz_to_rad_per_sample(-self.pll_tracking_range,
self.input_samp_rate))
self.qtgui_waterfall_sink_x_0.set_frequency_range(
0, self.input_samp_rate)
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.input_samp_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.carrier.set_sampling_freq(self.samp_rate)
self.message.set_sampling_freq(self.samp_rate)
self.wxgui_scopesink2_0.set_sample_rate(self.samp_rate)
self.wxgui_scopesink2_1.set_sample_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(firdes.band_pass(1/self.m, self.samp_rate, 5000, 15000, 100, firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate / (80 / 2))
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate )
self.fft_filter_xxx_0.set_taps((firdes.band_pass(1,self.samp_rate,200,800,100,firdes.WIN_BLACKMAN)))
self.blocks_throttle_0.set_sample_rate(self.samp_rate )
self.AFSK_Demod_0.set_in_sps(int(self.samp_rate / self.baud))
def set_trans(self, trans):
self.trans = trans
self._trans_slider.set_value(self.trans)
self._trans_text_box.set_value(self.trans)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, self.width / 4, self.width / 2, self.trans, firdes.WIN_HAMMING, 6.76)
)
def __init__(self):
gr.top_block.__init__(self, "Acoust Out")
##################################################
# Variables
##################################################
self.transistion = transistion = 100
self.sps = sps = 2
self.sideband_rx = sideband_rx = 1000
self.sideband = sideband = 1000
self.samp_rate = samp_rate = 48000
self.payload = payload = 20
self.interpolation = interpolation = 200
self.fd = fd = 0
self.carrier = carrier = 13000
##################################################
# Blocks
##################################################
self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
interpolation=interpolation,
decimation=1,
taps=None,
fractional_bw=None,
)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(1, (firdes.band_pass (0.50,samp_rate,carrier-sideband,carrier+sideband,transistion)), -carrier, samp_rate)
self.digital_gfsk_mod_0 = digital.gfsk_mod(
samples_per_symbol=sps,
sensitivity=1.0,
bt=0.35,
verbose=False,
log=False,
)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blks2_tcp_source_0 = grc_blks2.tcp_source(
itemsize=gr.sizeof_char*1,
addr="127.0.0.1",
port=9000,
server=True,
)
self.blks2_packet_encoder_0 = grc_blks2.packet_mod_b(grc_blks2.packet_encoder(
samples_per_symbol=sps,
bits_per_symbol=1,
preamble="",
access_code="",
pad_for_usrp=False,
),
payload_length=payload,
)
self.audio_sink_0 = audio.sink(48000, "", True)
##################################################
# Connections
##################################################
self.connect((self.blocks_complex_to_real_0, 0), (self.audio_sink_0, 0))
self.connect((self.digital_gfsk_mod_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.blks2_packet_encoder_0, 0), (self.digital_gfsk_mod_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.blks2_tcp_source_0, 0), (self.blks2_packet_encoder_0, 0))
def set_width(self, width):
self.width = width
self._width_slider.set_value(self.width)
self._width_text_box.set_value(self.width)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, self.width / 4, self.width / 2, self.trans, firdes.WIN_HAMMING, 6.76)
)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, self.low_cutoff,
self.high_cutoff, self.transition_width,
firdes.WIN_HAMMING, 6.76))
self.osmosdr_sink_0.set_sample_rate(self.samp_rate)
def set_m(self, m):
self.m = m
self._m_slider.set_value(self.m)
self._m_text_box.set_value(self.m)
self.band_pass_filter_0.set_taps(
firdes.band_pass(10 / self.m, self.samp_rate, 20, 15000, 1000,
firdes.WIN_HAMMING, 6.76))
def set_ch_rate(self, ch_rate):
self.ch_rate = ch_rate
self.fft_filter_xxx_1.set_taps(
(firdes.band_pass(1, self.ch_rate, 400, 5e3, 400,
firdes.WIN_BLACKMAN)))
self.analog_quadrature_demod_cf_0.set_gain(self.ch_rate /
(2 * math.pi * 12e3 / 8.0))
self.APRS_Rx_0.set_samp_rate(self.ch_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.set_xlate_filter_taps(firdes.low_pass(1, self.samp_rate, 125000, 25000, firdes.WIN_HAMMING, 6.76))
self.fftsink.set_sample_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, self.width / 4, self.width / 2, self.trans, firdes.WIN_HAMMING, 6.76)
)
self.osmosdr_source_0.set_sample_rate(self.samp_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
self.fft_filter_xxx_0.set_taps(
(firdes.band_pass(1, self.samp_rate, 1e3, 2.6e3, 100,
firdes.WIN_BLACKMAN)))
self.APRS_Rx_0.set_samp_rate(self.samp_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.set_decimation(self.samp_rate/self.aud_rate)
self.low_pass_filter_0_1.set_taps(firdes.low_pass(30, self.samp_rate, 14000, 1000, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_1_0_0_0.set_taps(firdes.low_pass(1, self.samp_rate, 14000, 1000, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0.set_taps(firdes.band_pass(120, self.samp_rate, 24000, 52000, 1000, firdes.WIN_HAMMING, 6.76))
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.analog_sig_source_x_0_0_0.set_sampling_freq(self.samp_rate/self.decimation)
self.high_pass_filter_0.set_taps(firdes.high_pass(1, self.samp_rate/self.decimation, self.bw, 10, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_0_0.set_taps(firdes.low_pass(1, self.samp_rate/self.decimation, self.bw, 10, firdes.WIN_HAMMING, 6.76))
self.fractional_resampler_xx_0_0.set_resamp_ratio(self.samp_rate/48000.0)
self.fractional_resampler_xx_0_0_0.set_resamp_ratio(self.samp_rate/48000.0)
self.low_pass_filter_0_2.set_taps(firdes.low_pass(1, self.samp_rate, self.bw*(2+(self.mode==2)+(self.mode==3)), 500, firdes.WIN_HAMMING, 6.76))
self.low_pass_filter_0_0_0_0.set_taps(firdes.low_pass(self.visualsq, self.samp_rate/self.decimation, self.bw, 10, firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_0_0_0.set_taps(firdes.band_pass(250, self.samp_rate, 18500, 19500, 500, firdes.WIN_HAMMING, 6.76))
self.fractional_resampler_xx_0.set_resamp_ratio((self.samp_rate/self.decimation)/48000.0)
self.rtlsdr_source_0.set_sample_rate(self.samp_rate)
def set_carrier(self, carrier):
self.carrier = carrier
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate,
self.carrier - (self.filter_width / 2),
self.carrier + (self.filter_width / 2), 100,
firdes.WIN_HAMMING, 6.76))
self.analog_sig_source_x_0.set_frequency(self.carrier)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.set_dec_samp_rate(self.samp_rate / self.dec)
self.set_window_len((self.samp_rate / self.bps) * 2)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, 1700 - self.bpf_width,
1700 + self.bpf_width, self.bpf_trans,
firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.set_filter_taps(
firdes.low_pass(1.0, self.samp_rate, self.fsk_deviation_hz, 400))
self.analog_quadrature_demod_cf_0.set_gain(
self.samp_rate / (2 * math.pi * self.fsk_deviation_hz / 8.0))
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, self.freq_symbol_0 - 100,
self.freq_symbol_0 + 100, 100, firdes.WIN_HAMMING,
6.76))
self.band_pass_filter_0_0.set_taps(
firdes.band_pass(1, self.samp_rate, self.freq_symbol_1 - 100,
self.freq_symbol_1 + 100, 100, firdes.WIN_HAMMING,
6.76))
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
self.rtlsdr_source_1.set_sample_rate(self.samp_rate)
self.logpwrfft_x_0.set_sample_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, 1000, 10000, 10000,
firdes.WIN_HAMMING, 6.76))
def set_lo_freq(self, lo_freq):
self.lo_freq = lo_freq
self.osmosdr_sink_0.set_center_freq(self.center_freq - self.lo_freq, 0)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.audio_rate, self.lo_freq + 1e3,
self.lo_freq + 2e3, 250, firdes.WIN_HAMMING,
6.76))
self.analog_sig_source_x_0.set_frequency(self.lo_freq)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
self.fft_filter_xxx_0.set_taps(
(firdes.band_pass(10, self.samp_rate, 1e3, 2.6e3, 100,
firdes.WIN_BLACKMAN)))
self.AFSK_Demod_0.set_in_sps(int(self.samp_rate / self.baud))
def set_SampSymb(self, SampSymb):
self.SampSymb = SampSymb
self.set_rrc_taps_0(firdes.root_raised_cosine(self.nfilts, self.nfilts, 1.0/float(self.SampSymb), 0.35, 45*self.nfilts))
self.set_min_PLL(2*np.pi*(1/float(self.SampSymb)-1/float(self.SampSymb)*self.FDP))
self.set_max_PLL(2*np.pi*(1/float(self.SampSymb)+1/float(self.SampSymb)*self.FDP))
self.band_pass_filter_0_0.set_taps(firdes.band_pass(1, self.samp_rate, (2*self.samp_rate/float(self.SampSymb)-130e3), (2*self.samp_rate/float(self.SampSymb)+100e3), 10e3, firdes.WIN_HAMMING, 6.76))
self.set_LBP_PLL((self.samp_rate/float(self.SampSymb)-self.samp_rate/float(self.SampSymb)*self.FDP*2))
self.set_HBP_PLL((self.samp_rate/float(self.SampSymb)+self.samp_rate/float(self.SampSymb)*self.FDP*2))
def set_af_gain(self, af_gain):
self.af_gain = af_gain
Qt.QMetaObject.invokeMethod(
self._af_gain_line_edit, "setText",
Qt.Q_ARG("QString", eng_notation.num_to_str(self.af_gain)))
self.band_pass_filter_0.set_taps(
firdes.band_pass(10.0**(self.af_gain / 20.0), self.if_rate, 300,
3000, 500, firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.band_pass_filter_0.set_taps(
firdes.band_pass(self.a, self.samp_rate, 20, 500, self.twidth,
firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_1.set_taps(
firdes.band_pass(self.b, self.samp_rate, 500, 3000, self.twidth,
firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_1_0_0_0.set_taps(
firdes.band_pass(self.e, self.samp_rate, 9000, 15000, self.twidth,
firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_1_0_0.set_taps(
firdes.band_pass(self.d, self.samp_rate, 6000, 9000, self.twidth,
firdes.WIN_HAMMING, 6.76))
self.band_pass_filter_1_0.set_taps(
firdes.band_pass(self.c, self.samp_rate, 3000, 6000, self.twidth,
firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.analog_sig_source_x_0_0.set_sampling_freq(self.samp_rate)
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, 85000, 115000, 100, firdes.WIN_HAMMING, 6.76))
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, 22000, 100, firdes.WIN_HAMMING, 6.76))
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.qtgui_time_sink_x_0_1.set_samp_rate(self.samp_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.band_pass_filter_0_1.set_taps(
firdes.band_pass(1, self.samp_rate, 500, 1500, 10,
firdes.WIN_HAMMING, 6.76))
self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.analog_sig_source_x_1.set_sampling_freq(self.samp_rate)
def set_if_rate(self, if_rate):
self.if_rate = if_rate
self.wxgui_fftsink2_0.set_sample_rate(self.if_rate)
self.channels_fading_model_0.set_fDTs(self.dpp / self.if_rate)
self.band_pass_filter_0.set_taps(
firdes.band_pass(4, self.if_rate, self.fc - 8e3, self.fc + 8e3,
100, firdes.WIN_HAMMING, 6.76))
self.analog_sig_source_x_0_0.set_sampling_freq(self.if_rate)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.uhd_usrp_sink_0.set_samp_rate(self.samp_rate)
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.BPF.set_taps(
firdes.band_pass(1, self.samp_rate, 80e3, 100e3, 200,
firdes.WIN_HAMMING, 6.76))
def set_audio_samp(self, audio_samp):
self.audio_samp = audio_samp
self.set_samp_rate(self.audio_samp * 22)
self.detectMarkSpace_1_0_0.set_samp_rate(self.audio_samp)
self.detectMarkSpace_0_0_0.set_samp_rate(self.audio_samp)
self.band_pass_filter_0_0_0.set_taps(
firdes.band_pass(1, self.audio_samp, 950, 2450, 100,
firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.rtlsdr_source_0.set_sample_rate(self.samp_rate)
self.wxgui_fftsink2_0_2.set_sample_rate(self.samp_rate)
self.wxgui_scopesink2_1.set_sample_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(
firdes.band_pass(10 / self.m, self.samp_rate, 20, 15000, 1000,
firdes.WIN_HAMMING, 6.76))
def set_bandwidth(self, bandwidth):
self.bandwidth = bandwidth
self.uhd_usrp_source_0.set_bandwidth(self.bandwidth, 0)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samplingRate,
self.centerFrequency - self.bandwidth / 2,
self.centerFrequency + self.bandwidth / 2,
self.bandwidth / 2 / 6, firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.rds_demod_0.set_samp_rate(self.samp_rate)
self.fm_audio_demod_0.set_samp_rate(self.samp_rate)
self.band_pass_filter_0_1.set_taps(firdes.band_pass(1, self.samp_rate, 19e3-500, 19e3+500, 1e3, firdes.WIN_HAMMING, 6.76))
self.analog_pll_refout_cc_0.set_loop_bandwidth(2 * math.pi * 8 / self.samp_rate)
self.analog_pll_refout_cc_0.set_max_freq(2 * math.pi * (19000+4) / self.samp_rate)
self.analog_pll_refout_cc_0.set_min_freq(2 * math.pi * (19000-4) / self.samp_rate)
def set_bw(self, bw):
self.bw = bw
self.band_pass_filter_0.set_taps(
firdes.band_pass(
1, self.samp_rate,
max(self.bw / 15.0, self.center - self.bw / 2.0),
min(self.samp_rate / 2.0 - self.bw / 15.0,
self.center + self.bw / 2.0), self.bw / 5.0,
firdes.WIN_HANN, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.band_pass_filter_0.set_taps(
firdes.band_pass(self.band1, self.samp_rate, 20, 500, 10,
firdes.WIN_KAISER, 6.76))
self.band_pass_filter_1.set_taps(
firdes.band_pass(self.band5, self.samp_rate, 9000, 15000, 10,
firdes.WIN_KAISER, 6.76))
self.band_pass_filter_2.set_taps(
firdes.band_pass(self.band4, self.samp_rate, 6000, 9000, 10,
firdes.WIN_KAISER, 6.76))
self.band_pass_filter_3.set_taps(
firdes.band_pass(self.band3, self.samp_rate, 3000, 6000, 10,
firdes.WIN_KAISER, 6.76))
self.band_pass_filter_4.set_taps(
firdes.band_pass(self.band2, self.samp_rate, 500, 3000, 10,
firdes.WIN_KAISER, 6.76))
self.qtgui_sink_x_0.set_frequency_range(0, self.samp_rate)
def set_baseband_rate(self, baseband_rate): self.baseband_rate = baseband_rate self.fir_filter_xxx_0.set_taps((firdes.low_pass(1.0, self.baseband_rate, 80e3,35e3,firdes.WIN_HAMMING))) self.fir_filter_xxx_1.set_taps((firdes.low_pass(1.0,self.baseband_rate,15e3,1e3,firdes.WIN_HAMMING))) self.fir_filter_xxx_3.set_taps((firdes.band_pass(1.0,self.baseband_rate,38e3-15e3/2,38e3+15e3/2,1e3,firdes.WIN_HAMMING))) self.fir_filter_xxx_4.set_taps((firdes.band_pass(1.0,self.baseband_rate,57e3-3e3,57e3+3e3,3e3,firdes.WIN_HAMMING))) self.fir_filter_xxx_2.set_taps((firdes.band_pass(1.0,self.baseband_rate,19e3-500,19e3+500,1e3,firdes.WIN_HAMMING))) self.wxgui_fftsink2_0.set_sample_rate(self.baseband_rate) self.wxgui_fftsink2_0_0.set_sample_rate(self.baseband_rate) self.fir_filter_xxx_5.set_taps((firdes.low_pass(1.0,self.baseband_rate,15e3,1e3,firdes.WIN_HAMMING))) self.set_audio_decim_rate(self.baseband_rate/self.audio_decim) self.fir_filter_xxx_6.set_taps((firdes.low_pass(1,self.baseband_rate,1.5e3,2e3,firdes.WIN_HAMMING))) self.fir_filter_xxx_7.set_taps((firdes.low_pass(1,self.baseband_rate,1.2e3,1.5e3,firdes.WIN_HAMMING))) self.wxgui_scopesink2_0.set_sample_rate(self.baseband_rate) self.wxgui_fftsink2_0_0_0_1_0.set_sample_rate(self.baseband_rate) self.wxgui_fftsink2_0_0_0_1_0_1.set_sample_rate(self.baseband_rate) self.wxgui_fftsink2_0_0_0_1_0_0.set_sample_rate(self.baseband_rate) self.wxgui_fftsink2_0_0_0_1.set_sample_rate(self.baseband_rate)
def set_samp_rate_rx(self, samp_rate_rx):
self.samp_rate_rx = samp_rate_rx
self.band_pass_filter_0.set_taps(
firdes.band_pass(
6, self.samp_rate_rx /
(self.first_stage_decimation *
int(self.samp_rate_rx / self.first_stage_decimation /
self.initial_bandwidth)) / self.audio_decimation, 500,
4.2e3, 200, firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_waterfall_sink_x_0.set_frequency_range(0, self.samp_rate)
self.low_pass_filter_0_0.set_taps(
firdes.low_pass(1, self.samp_rate, 4000, 1, firdes.WIN_HAMMING,
6.76))
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, 2000, 4000, 1,
firdes.WIN_HAMMING, 8))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_scopesink2_0.set_sample_rate(self.samp_rate)
self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
self.osmosdr_sink_0.set_sample_rate(self.samp_rate)
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(
firdes.band_pass(1, self.samp_rate, 100e3, 200e3, 50e3,
firdes.WIN_HAMMING, 6.76))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, max(self.bw/15.0,self.center-self.bw/2.0), min(self.samp_rate/2.0-self.bw/15.0,self.center+self.bw/2.0), self.bw/5.0, firdes.WIN_HANN, 6.76))
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.set_sigfreq(self.samp_rate*1.0247385/11.0)
self.set_center(self.samp_rate/11.0)
self.set_bw(self.samp_rate/2)
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
def set_baseband_rate(self, baseband_rate):
self.baseband_rate = baseband_rate
self.set_audio_decim_rate(self.baseband_rate/self.audio_decim)
self.wxgui_fftsink2_0.set_sample_rate(self.baseband_rate)
self.fir_filter_xxx_5.set_taps((firdes.low_pass(1.0,self.baseband_rate,15e3,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_6.set_taps((firdes.low_pass(1,self.baseband_rate,1.5e3,2e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_7.set_taps((firdes.low_pass(1,self.baseband_rate,1.2e3,1.5e3,firdes.WIN_HAMMING)))
self.wxgui_scopesink2_0.set_sample_rate(self.baseband_rate)
self.wxgui_fftsink2_0_0_0_1_0.set_sample_rate(self.baseband_rate)
self.wxgui_fftsink2_0_0_0_1_0_1.set_sample_rate(self.baseband_rate)
self.wxgui_fftsink2_0_0_0_1_0_0.set_sample_rate(self.baseband_rate)
self.wxgui_fftsink2_0_0_0_1.set_sample_rate(self.baseband_rate)
self.fir_filter_xxx_0.set_taps((firdes.low_pass(1.0, self.baseband_rate, 80e3,35e3,firdes.WIN_HAMMING)))
self.wxgui_fftsink2_0_0.set_sample_rate(self.baseband_rate)
self.fir_filter_xxx_1.set_taps((firdes.low_pass(1.0,self.baseband_rate,15e3,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_2.set_taps((firdes.band_pass(1.0,self.baseband_rate,19e3-500,19e3+500,1e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_3.set_taps((firdes.band_pass(1.0,self.baseband_rate,38e3-15e3/2,38e3+15e3/2,1e3,firdes.WIN_HAMMING)))
self.analog_pll_freqdet_cf_0.set_loop_bandwidth(1.0*0 + (self.loop_bw*2*math.pi/self.baseband_rate))
self.analog_pll_freqdet_cf_0.set_max_freq(+(2.0 * math.pi * 90e3 / self.baseband_rate))
self.analog_pll_freqdet_cf_0.set_min_freq(-(2.0 * math.pi * 90e3 / self.baseband_rate))
self.fir_filter_xxx_4.set_taps((firdes.band_pass(1.0,self.baseband_rate,57e3-3e3,57e3+3e3,3e3,firdes.WIN_HAMMING)))
def design_lofi_audio_filter(rate, lowpass):
"""
Audio output filter for speech-type receivers.
Original motivation was to remove CTCSS tones.
"""
upper = min(10000, rate / 2)
transition = 1000
if lowpass:
return firdes.low_pass(1.0, rate, upper, transition, firdes.WIN_HAMMING)
else:
return firdes.band_pass(1.0, rate, 500, upper, transition, firdes.WIN_HAMMING)
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Top Block")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 48000
##################################################
# Blocks
##################################################
self.rational_resampler_xxx_1 = filter.rational_resampler_fff(
interpolation=4160,
decimation=4800,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=9600,
decimation=samp_rate,
taps=None,
fractional_bw=None,
)
self.blocks_wavfile_source_0 = blocks.wavfile_source(sys.argv[1], False)
self.blocks_skiphead_0 = blocks.skiphead(gr.sizeof_float*1, 1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((255, ))
self.blocks_keep_one_in_n_1 = blocks.keep_one_in_n(gr.sizeof_float*1, 2)
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(gr.sizeof_float*1, 2)
self.blocks_float_to_uchar_0 = blocks.float_to_uchar()
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_char*1, sys.argv[1]+".gray", False)
self.blocks_file_sink_0.set_unbuffered(False)
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
self.band_pass_filter_0 = filter.fir_filter_fff(1, firdes.band_pass(
1, samp_rate, 500, 4200, 2000, firdes.WIN_HAMMING, 6.76))
##################################################
# Connections
##################################################
self.connect((self.blocks_wavfile_source_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.band_pass_filter_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.blocks_skiphead_0, 0))
self.connect((self.blocks_skiphead_0, 0), (self.blocks_keep_one_in_n_1, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.blocks_keep_one_in_n_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0), (self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_keep_one_in_n_1, 0), (self.blocks_float_to_complex_0, 1))
self.connect((self.blocks_float_to_complex_0, 0), (self.blocks_complex_to_mag_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.rational_resampler_xxx_1, 0))
self.connect((self.rational_resampler_xxx_1, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_float_to_uchar_0, 0))
self.connect((self.blocks_float_to_uchar_0, 0), (self.blocks_file_sink_0, 0))
def setup_blocks(self):
##################################################
# Blocks
##################################################
self.update_input()
self.blocks_wavfile_sink_0 = blocks.wavfile_sink("/home/bward/Documents/Labhack 2016/Cleaned Audio/cleaned_audio.wav", 1, self.samp_rate, 16)
self.band_pass_filter_0 = filter.fir_filter_fff(1, firdes.band_pass(
1, self.samp_rate, self.low_freq, self.high_freq, 10, firdes.WIN_HAMMING, 6.76))
##################################################
# Connections
##################################################
self.connect((self.band_pass_filter_0, 0), (self.blocks_wavfile_sink_0, 0))
self.connect((self.blocks_wavfile_source_0, 0), (self.band_pass_filter_0, 0))
def set_baseband_rate(self, baseband_rate):
self.baseband_rate = baseband_rate
self.set_audio_decim_rate(self.baseband_rate/self.audio_decim)
self.wxgui_fftsink2_0_0_0_1.set_sample_rate(self.baseband_rate)
self.wxgui_fftsink2_0_0_0_1_0_0.set_sample_rate(self.baseband_rate)
self.wxgui_fftsink2_0_0.set_sample_rate(self.baseband_rate)
self.fir_filter_xxx_2.set_taps((firdes.complex_band_pass(1.0,self.baseband_rate,19e3-500,19e3+500,1e3,firdes.WIN_HAMMING)))
self.wxgui_scopesink2_0.set_sample_rate(self.baseband_rate)
self.analog_pll_refout_cc_0.set_max_freq(2 * math.pi * (19000+200) / self.baseband_rate)
self.analog_pll_refout_cc_0.set_min_freq(2 * math.pi * (19000-200) / self.baseband_rate)
self.fir_filter_xxx_5.set_taps((firdes.low_pass(1.0,self.baseband_rate,20e3,40e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_3.set_taps((firdes.band_pass(1.0,self.baseband_rate,38e3-13e3,38e3+13e3,3e3,firdes.WIN_HAMMING)))
self.fir_filter_xxx_1.set_taps((firdes.low_pass(1.0,self.baseband_rate,13e3,3e3,firdes.WIN_HAMMING)))
self.wxgui_waterfallsink2_0.set_sample_rate(self.baseband_rate)
self.freq_xlating_fir_filter_xxx_1.set_taps((firdes.low_pass(2500.0,self.baseband_rate,2.4e3,2e3,firdes.WIN_HAMMING)))
def make_lofi_audio_filter(rate): ''' Audio output filter for speech-type receivers. Original motivation was to remove CTCSS tones. ''' return grfilter.fir_filter_fff( 1, # decimation firdes.band_pass( 1.0, rate, 500, min(10000, rate / 2), 1000, firdes.WIN_HAMMING))
def __init__(self):
gr.top_block.__init__(self, "Gsm Meta Capture")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1e6
##################################################
# Blocks
##################################################
self.uhd_usrp_source_0 = uhd.usrp_source(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_source_0.set_samp_rate(samp_rate)
self.uhd_usrp_source_0.set_center_freq(906.2e6, 0)
self.uhd_usrp_source_0.set_gain(10, 0)
self.single_pole_iir_filter_xx_0 = filter.single_pole_iir_filter_ff(.0001, 1)
self.blocks_keep_one_in_n_0 = blocks.keep_one_in_n(gr.sizeof_float*1, 13300)
self.blocks_file_meta_sink_0 = blocks.file_meta_sink(gr.sizeof_float*1, "meta_signal.bin", samp_rate, 1, blocks.GR_FILE_FLOAT, False, 10, "", False)
self.blocks_file_meta_sink_0.set_unbuffered(False)
self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(1)
self.band_pass_filter_0 = filter.fir_filter_ccf(1, firdes.band_pass(
1, samp_rate, 100e3, 300e3, 200, firdes.WIN_HAMMING, 6.76))
##################################################
# Connections
##################################################
self.connect((self.band_pass_filter_0, 0), (self.blocks_complex_to_mag_squared_0, 0))
self.connect((self.blocks_complex_to_mag_squared_0, 0), (self.single_pole_iir_filter_xx_0, 0))
self.connect((self.blocks_keep_one_in_n_0, 0), (self.blocks_file_meta_sink_0, 0))
self.connect((self.single_pole_iir_filter_xx_0, 0), (self.blocks_keep_one_in_n_0, 0))
self.connect((self.uhd_usrp_source_0, 0), (self.band_pass_filter_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Ud T")
_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
##################################################
# Variables
##################################################
self.transistion = transistion = 100
self.sps = sps = 9
self.sideband_rx = sideband_rx = 1000
self.sideband = sideband = 1000
self.samp_rate = samp_rate = 48000
self.payload = payload = 5
self.interpolation = interpolation = 500
self.carrier = carrier = 23000
##################################################
# Blocks
##################################################
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_c(
self.GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="FFT Plot",
peak_hold=False,
)
self.Add(self.wxgui_fftsink2_0_0.win)
self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
interpolation=500,
decimation=1,
taps=None,
fractional_bw=None,
)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(1, (firdes.band_pass (0.50,samp_rate,carrier-sideband,carrier+sideband,transistion)), -carrier, samp_rate)
self.digital_gfsk_mod_0 = digital.gfsk_mod(
samples_per_symbol=sps,
sensitivity=1.0,
bt=0.35,
verbose=False,
log=False,
)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blks2_tcp_source_0 = grc_blks2.tcp_source(
itemsize=gr.sizeof_char*1,
addr="127.0.0.1",
port=10004,
server=True,
)
self.blks2_packet_encoder_0 = grc_blks2.packet_mod_b(grc_blks2.packet_encoder(
samples_per_symbol=sps,
bits_per_symbol=1,
preamble="",
access_code="",
pad_for_usrp=False,
),
payload_length=payload,
)
self.audio_sink_0 = audio.sink(48000, "", True)
##################################################
# Connections
##################################################
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.blks2_packet_encoder_0, 0), (self.digital_gfsk_mod_0, 0))
self.connect((self.blks2_tcp_source_0, 0), (self.blks2_packet_encoder_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.audio_sink_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.digital_gfsk_mod_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
def set_carrier(self, carrier):
self.carrier = carrier
self.freq_xlating_fir_filter_xxx_0.set_taps((firdes.band_pass (0.50,self.samp_rate,self.carrier-self.sideband,self.carrier+self.sideband,self.transistion)))
self.freq_xlating_fir_filter_xxx_0.set_center_freq(-self.carrier)
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_fftsink2_0_0.set_sample_rate(self.samp_rate)
self.freq_xlating_fir_filter_xxx_0.set_taps((firdes.band_pass (0.50,self.samp_rate,self.carrier-self.sideband,self.carrier+self.sideband,self.transistion)))
def set_sideband(self, sideband):
self.sideband = sideband
self.freq_xlating_fir_filter_xxx_0.set_taps((firdes.band_pass (0.50,self.samp_rate,self.carrier-self.sideband,self.carrier+self.sideband,self.transistion)))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.uhd_usrp_source_0.set_samp_rate(self.samp_rate)
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, -300e3, -100e3, 200, firdes.WIN_HAMMING, 6.76))
def __init__(self):
gr.top_block.__init__(self, "FM radio FFT example")
Qt.QWidget.__init__(self)
self.setWindowTitle("FM radio FFT example")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "Exp1")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.variable_sample_rate_0 = variable_sample_rate_0 = 1e6
self.samp_rate = samp_rate = 44100
self.xlatecenter_4 = xlatecenter_4 = 0
self.xlatecenter_3 = xlatecenter_3 = 0
self.xlatecenter_2 = xlatecenter_2 = 0
self.xlatecenter = xlatecenter = 0
self.xlate_filter2 = xlate_filter2 = firdes.low_pass(1, samp_rate, 4000, 1000, firdes.WIN_HAMMING, 6.76)
self.xlate_filter = xlate_filter = firdes.low_pass(1, variable_sample_rate_0, 125000, 25000, firdes.WIN_HAMMING, 6.76)
self.variable_1 = variable_1 = 0
self.transition = transition = 1e6
self.rri = rri = 441
self.rrd = rrd = 500
self.quadrature = quadrature = 500000
self.pscf4 = pscf4 = 0
self.pscf3 = pscf3 = 0
self.pscf2 = pscf2 = 0
self.pscf1 = pscf1 = 0
self.cutoff = cutoff = 1e5
self.bptrans = bptrans = 100
self.bpsr = bpsr = 200000
self.bplow_4 = bplow_4 = 100
self.bplow_3 = bplow_3 = 100
self.bplow_2 = bplow_2 = 100
self.bplow_1 = bplow_1 = 100
self.bphi_4 = bphi_4 = 2.8e3
self.bphi_3 = bphi_3 = 2.8e3
self.bphi_2 = bphi_2 = 2.8e3
self.bphi_1 = bphi_1 = 2.8e3
self.audio_interp = audio_interp = 4
self.amp_4 = amp_4 = 0
self.amp_3 = amp_3 = 0
self.amp_2 = amp_2 = 0
self.amp_1 = amp_1 = 1
self.RF_Gain = RF_Gain = 35
self.CF = CF = 88.5e6
##################################################
# Blocks
##################################################
self._pscf1_range = Range(-10000, 10000, 50, 0, 200)
self._pscf1_win = RangeWidget(self._pscf1_range, self.set_pscf1, "pscf1", "counter_slider", float)
self.top_layout.addWidget(self._pscf1_win)
self._amp_1_range = Range(0, 1, 0.01, 1, 200)
self._amp_1_win = RangeWidget(self._amp_1_range, self.set_amp_1, "Amp", "counter_slider", float)
self.top_layout.addWidget(self._amp_1_win)
self.rational_resampler_xxx_1_0_0 = filter.rational_resampler_ccc(
interpolation=rri,
decimation=rrd,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_1_0 = filter.rational_resampler_fff(
interpolation=rri,
decimation=rrd,
taps=None,
fractional_bw=None,
)
self.freq_xlating_fir_filter_xxx_1_0 = filter.freq_xlating_fir_filter_fcc(1, (1, ), pscf1, samp_rate)
self.freq_xlating_fir_filter_xxx_1 = filter.freq_xlating_fir_filter_ccc(1, (1, ), pscf1, samp_rate)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(5, (xlate_filter), xlatecenter, variable_sample_rate_0)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff((amp_1, ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((amp_1, ))
self.blocks_complex_to_float_1 = blocks.complex_to_float(1)
self.blocks_complex_to_float_0 = blocks.complex_to_float(1)
self.band_pass_filter_0_0_0_0 = filter.fir_filter_ccf(4, firdes.band_pass(
1, bpsr, bplow_1, bphi_1, bptrans, firdes.WIN_HAMMING, 6.76))
self.audio_sink_1 = audio.sink(48000, "Radio:NFM1", True)
self.analog_nbfm_rx_0_0 = analog.nbfm_rx(
audio_rate=50000,
quad_rate=int(variable_sample_rate_0/5),
tau=75e-6,
max_dev=12500,
)
self.RTL820T = osmosdr.source( args="numchan=" + str(1) + " " + "" )
self.RTL820T.set_sample_rate(variable_sample_rate_0)
self.RTL820T.set_center_freq(CF, 0)
self.RTL820T.set_freq_corr(0, 0)
self.RTL820T.set_dc_offset_mode(2, 0)
self.RTL820T.set_iq_balance_mode(0, 0)
self.RTL820T.set_gain_mode(False, 0)
self.RTL820T.set_gain(RF_Gain, 0)
self.RTL820T.set_if_gain(20, 0)
self.RTL820T.set_bb_gain(20, 0)
self.RTL820T.set_antenna("", 0)
self.RTL820T.set_bandwidth(1e6, 0)
##################################################
# Connections
##################################################
self.connect((self.RTL820T, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.analog_nbfm_rx_0_0, 0), (self.rational_resampler_xxx_1_0, 0))
self.connect((self.band_pass_filter_0_0_0_0, 0), (self.rational_resampler_xxx_1_0_0, 0))
self.connect((self.blocks_complex_to_float_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_complex_to_float_1, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.audio_sink_1, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.audio_sink_1, 1))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.analog_nbfm_rx_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.band_pass_filter_0_0_0_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1, 0), (self.blocks_complex_to_float_1, 0))
self.connect((self.freq_xlating_fir_filter_xxx_1_0, 0), (self.blocks_complex_to_float_0, 0))
self.connect((self.rational_resampler_xxx_1_0, 0), (self.freq_xlating_fir_filter_xxx_1_0, 0))
self.connect((self.rational_resampler_xxx_1_0_0, 0), (self.freq_xlating_fir_filter_xxx_1, 0))
def raw_bandpassfilter(self, const, samp_rate, lowpass, highpass, transition):
return firdes.band_pass (const, samp_rate,lowpass, highpass, transition)
def set_smux_filt_samprate(self, smux_filt_samprate):
self.smux_filt_samprate = smux_filt_samprate
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.smux_filt_samprate, self.bpf_base, self.bpf_base+30e3, 500, firdes.WIN_KAISER, 6.76))
self.band_pass_filter_0_0_0.set_taps(firdes.complex_band_pass(1, self.smux_filt_samprate, 18000, 20000, 1000, firdes.WIN_KAISER, 1))
self.baseband_LPF.set_taps(firdes.low_pass(1, self.smux_filt_samprate, 15e3, 500, firdes.WIN_KAISER, 6.76))
self.low_pass_filter_1_0.set_taps(firdes.low_pass(1, self.smux_filt_samprate, 15e3, 500, firdes.WIN_HAMMING, 1))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="FM Stereo Receiver")
##################################################
# Variables
##################################################
self.smux_filt_samprate = smux_filt_samprate = 256e3
self.smux_decim = smux_decim = 8
self.samp_rate = samp_rate = 2.048e6
self.right_gain = right_gain = 3
self.left_gain = left_gain = 3
self.bpf_base = bpf_base = 23e3
self.RF_Gain = RF_Gain = 45
self.CF = CF = 99.3e6
##################################################
# Blocks
##################################################
self._samp_rate_text_box = forms.text_box(
parent=self.GetWin(),
value=self.samp_rate,
callback=self.set_samp_rate,
label="Sample Rate: 1.024M, 1.4M, 1.8M, 1.92M, 2.048M, 2.4M & 2. 56M",
converter=forms.float_converter(),
)
self.GridAdd(self._samp_rate_text_box, 1, 0, 1, 1)
_right_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._right_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_right_gain_sizer,
value=self.right_gain,
callback=self.set_right_gain,
label="R Audio Gain",
converter=forms.float_converter(),
proportion=0,
)
self._right_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_right_gain_sizer,
value=self.right_gain,
callback=self.set_right_gain,
minimum=0,
maximum=5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_right_gain_sizer, 0, 1, 1, 1)
self.notebook_0 = self.notebook_0 = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "BB Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "Demod Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "Stereo Spectrum")
self.notebook_0.AddPage(grc_wxgui.Panel(self.notebook_0), "Stereo Signal")
self.GridAdd(self.notebook_0, 2, 0, 1, 2)
_left_gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._left_gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_left_gain_sizer,
value=self.left_gain,
callback=self.set_left_gain,
label="L Audio Gain",
converter=forms.float_converter(),
proportion=0,
)
self._left_gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_left_gain_sizer,
value=self.left_gain,
callback=self.set_left_gain,
minimum=0,
maximum=5,
num_steps=100,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_left_gain_sizer, 0, 0, 1, 1)
_RF_Gain_sizer = wx.BoxSizer(wx.VERTICAL)
self._RF_Gain_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_RF_Gain_sizer,
value=self.RF_Gain,
callback=self.set_RF_Gain,
label="RF Gain",
converter=forms.float_converter(),
proportion=0,
)
self._RF_Gain_slider = forms.slider(
parent=self.GetWin(),
sizer=_RF_Gain_sizer,
value=self.RF_Gain,
callback=self.set_RF_Gain,
minimum=0,
maximum=100,
num_steps=45,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_RF_Gain_sizer, 1, 1, 1, 1)
self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
self.notebook_0.GetPage(0).GetWin(),
baseband_freq=0,
dynamic_range=100,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=512,
fft_rate=15,
average=False,
avg_alpha=None,
title="Baseband Waterfall",
size=(800,100),
)
self.notebook_0.GetPage(0).GridAdd(self.wxgui_waterfallsink2_0.win, 3, 0, 1, 2)
self.wxgui_scopesink2_0 = scopesink2.scope_sink_f(
self.notebook_0.GetPage(3).GetWin(),
title="Scope Plot",
sample_rate=32e3,
v_scale=0,
v_offset=0,
t_scale=0,
ac_couple=False,
xy_mode=False,
num_inputs=2,
trig_mode=wxgui.TRIG_MODE_AUTO,
y_axis_label="Counts",
size=(800,500),
)
self.notebook_0.GetPage(3).Add(self.wxgui_scopesink2_0.win)
self.wxgui_fftsink2_0_1 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=32e3,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Difference FFT ",
peak_hold=False,
)
self.notebook_0.GetPage(2).Add(self.wxgui_fftsink2_0_1.win)
self.wxgui_fftsink2_0_0_0 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(1).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate/8,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Demodulated FFT",
peak_hold=False,
size=(800,800),
)
self.notebook_0.GetPage(1).Add(self.wxgui_fftsink2_0_0_0.win)
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_c(
self.notebook_0.GetPage(0).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Baseband FFT",
peak_hold=False,
size=(800,100),
)
self.notebook_0.GetPage(0).GridAdd(self.wxgui_fftsink2_0_0.win, 2, 0, 1, 2)
self.wxgui_fftsink2_0 = fftsink2.fft_sink_f(
self.notebook_0.GetPage(2).GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=32e3,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="Sum FFT",
peak_hold=False,
)
self.notebook_0.GetPage(2).Add(self.wxgui_fftsink2_0.win)
self.rfgain = blocks.multiply_const_vcc((RF_Gain, ))
self.low_pass_filter_1_0 = filter.fir_filter_fff(smux_decim, firdes.low_pass(
1, smux_filt_samprate, 15e3, 500, firdes.WIN_HAMMING, 1))
self.low_pass_filter_0 = filter.fir_filter_ccf(2, firdes.low_pass(
2, samp_rate/4, 100e3, 500, firdes.WIN_KAISER, 6.76))
self.iir_filter_xxx_0 = filter.iir_filter_ccf((-0.00266, 0.00504, -0.00309, -0.00136, 0.00663, -0.01052, 0.01103, -0.00731, 0.00016, 0.00800, -0.01396, 0.01490, -0.00971, -0.00035, 0.01173, -0.01979, 0.02054, -0.01240, -0.00273, 0.01960, -0.03122, 0.03124, -0.01669, -0.01017, 0.04137, -0.06448, 0.06476, -0.02634, -0.07449, 0.33571, -0.00000, -0.33571, 0.07449, 0.02634, -0.06476, 0.06448, -0.04137, 0.01017, 0.01669, -0.03124, 0.03122, -0.01960, 0.00273, 0.01240, -0.02054, 0.01979, -0.01173, 0.00035, 0.00971, -0.01490, 0.01396, -0.00800, -0.00016, 0.00731, -0.01103, 0.01052, -0.00663, 0.00136, 0.00309, -0.00504, 0.00266
), (1 , ), False)
self.fir_filter_xxx_0_0 = filter.fir_filter_ccf(4, (1,1,1,1))
self.fir_filter_xxx_0_0.declare_sample_delay(0)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_sub_xx_0 = blocks.sub_ff(1)
self.blocks_multiply_xx_1_0 = blocks.multiply_vcc(1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_0_0 = blocks.multiply_const_vff((right_gain, ))
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((left_gain, ))
self.blocks_multiply_conjugate_cc_0 = blocks.multiply_conjugate_cc(1)
self.blocks_float_to_complex_0 = blocks.float_to_complex(1)
self.blocks_file_source_0_0 = blocks.file_source(gr.sizeof_gr_complex*1, "/Users/bretttt/iCloud_drive/16S/engs110/project/radio_dat/IQ_Data_STEREO1", True)
self.blocks_divide_xx_1 = blocks.divide_cc(1)
self.blocks_delay_2 = blocks.delay(gr.sizeof_gr_complex*1, 30)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
self.blocks_complex_to_imag_0 = blocks.complex_to_imag(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0 = blocks.add_const_vcc((0.1, ))
self.baseband_LPF = filter.fir_filter_fff(smux_decim, firdes.low_pass(
1, smux_filt_samprate, 15e3, 500, firdes.WIN_KAISER, 6.76))
self.band_pass_filter_0_0_0 = filter.fir_filter_fcc(1, firdes.complex_band_pass(
1, smux_filt_samprate, 18000, 20000, 1000, firdes.WIN_KAISER, 1))
self.band_pass_filter_0 = filter.fir_filter_fff(1, firdes.band_pass(
1, smux_filt_samprate, bpf_base, bpf_base+30e3, 500, firdes.WIN_KAISER, 6.76))
self.audio_sink_0_0_0_0 = audio.sink(32000, "", True)
self.analog_pll_refout_cc_0_0 = analog.pll_refout_cc(3.14/100, 0.152*3.14, 0.144*3.14)
self.analog_fm_deemph_0_0 = analog.fm_deemph(fs=samp_rate/8, tau=75e-6)
self.analog_fm_deemph_0 = analog.fm_deemph(fs=samp_rate/8, tau=75e-6)
self.analog_const_source_x_0 = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 0)
_CF_sizer = wx.BoxSizer(wx.VERTICAL)
self._CF_text_box = forms.text_box(
parent=self.GetWin(),
sizer=_CF_sizer,
value=self.CF,
callback=self.set_CF,
label="Center Frequency",
converter=forms.float_converter(),
proportion=0,
)
self._CF_slider = forms.slider(
parent=self.GetWin(),
sizer=_CF_sizer,
value=self.CF,
callback=self.set_CF,
minimum=80e6,
maximum=108e6,
num_steps=280,
style=wx.SL_HORIZONTAL,
cast=float,
proportion=1,
)
self.GridAdd(_CF_sizer, 3, 0, 1, 2)
##################################################
# Connections
##################################################
self.connect((self.analog_const_source_x_0, 0), (self.blocks_float_to_complex_0, 1))
self.connect((self.analog_fm_deemph_0, 0), (self.audio_sink_0_0_0_0, 0))
self.connect((self.analog_fm_deemph_0_0, 0), (self.audio_sink_0_0_0_0, 1))
self.connect((self.analog_pll_refout_cc_0_0, 0), (self.blocks_multiply_xx_1_0, 0))
self.connect((self.analog_pll_refout_cc_0_0, 0), (self.blocks_multiply_xx_1_0, 1))
self.connect((self.band_pass_filter_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.band_pass_filter_0_0_0, 0), (self.analog_pll_refout_cc_0_0, 0))
self.connect((self.baseband_LPF, 0), (self.blocks_add_xx_0, 0))
self.connect((self.baseband_LPF, 0), (self.blocks_sub_xx_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.blocks_divide_xx_1, 1))
self.connect((self.blocks_add_xx_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.band_pass_filter_0_0_0, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.baseband_LPF, 0))
self.connect((self.blocks_complex_to_imag_0, 0), (self.wxgui_fftsink2_0_0_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.blocks_float_to_complex_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_delay_2, 0), (self.blocks_multiply_conjugate_cc_0, 1))
self.connect((self.blocks_divide_xx_1, 0), (self.blocks_delay_2, 0))
self.connect((self.blocks_divide_xx_1, 0), (self.iir_filter_xxx_0, 0))
self.connect((self.blocks_file_source_0_0, 0), (self.rfgain, 0))
self.connect((self.blocks_float_to_complex_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.blocks_multiply_conjugate_cc_0, 0), (self.blocks_complex_to_imag_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.analog_fm_deemph_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.analog_fm_deemph_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.wxgui_fftsink2_0_1, 0))
self.connect((self.blocks_multiply_const_vxx_0_0, 0), (self.wxgui_scopesink2_0, 1))
self.connect((self.blocks_multiply_xx_0, 0), (self.low_pass_filter_1_0, 0))
self.connect((self.blocks_multiply_xx_1_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.blocks_sub_xx_0, 0), (self.blocks_multiply_const_vxx_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.fir_filter_xxx_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_waterfallsink2_0, 0))
self.connect((self.fir_filter_xxx_0_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.iir_filter_xxx_0, 0), (self.blocks_multiply_conjugate_cc_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.blocks_complex_to_mag_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.blocks_divide_xx_1, 0))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.low_pass_filter_1_0, 0), (self.blocks_sub_xx_0, 1))
self.connect((self.rfgain, 0), (self.blocks_throttle_0, 0))
def __init__(self, inc_samp_rate):
gr.hier_block2.__init__(self,
"fsk_demod",
gr.io_signature(1, 1, gr.sizeof_float), # Input signature
gr.io_signature(1, 1, gr.sizeof_char) # Output signature
)
self.inc_samp_rate = inc_samp_rate
self.sps = sps = 4
self.baud_rate = baud_rate = 1200
self.samp_rate = samp_rate = sps * baud_rate * 4
self.mark = mark = 2200
self.space = space = 1200
self.center = center = int((mark + space) / 2)
##################################################
# Blocks
##################################################
# Stage 1: Force resampling to 19.2ksps
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=samp_rate,
decimation=self.inc_samp_rate,
taps=None,
fractional_bw=None,
)
# Stage 2: Bandpass Filter
self.bpf_width = bpf_width = 800
self.bpf_trans = bpf_trans = 200
self.band_pass_filter_0 = filter.fir_filter_fff(1, firdes.band_pass(
1, samp_rate, 1700-bpf_width, 1700+bpf_width, bpf_trans, firdes.WIN_RECTANGULAR, 6.76))
# Stage 3: Tone Detection
self.window_len = window_len = self.samp_rate/self.baud_rate*2
self.window = window = signal.windows.cosine(window_len)
self.freq_xlating_fir_filter_xxx_0_0 = filter.freq_xlating_fir_filter_fcf(4, (window), mark, samp_rate)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_fcf(4, (window), space, samp_rate)
self.blocks_complex_to_mag_0_0 = blocks.complex_to_mag(1)
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
# Stage 4: AGC
self.decay = decay = 0.00022
self.attack = attack = 0.8
self.bruninga_direwolf_agc_0_0 = bruninga.direwolf_agc(attack, decay)
self.bruninga_direwolf_agc_0 = bruninga.direwolf_agc(attack, decay)
self.blocks_sub_xx_1 = blocks.sub_ff(1)
# Stage 5: Clock Recovery
self.gain_mu = gain_mu = 0.45
self.digital_clock_recovery_mm_xx_0 = digital.clock_recovery_mm_ff(self.sps*(1+0.0), 0.25*gain_mu*gain_mu, 0.5, gain_mu, 0.05)
# Stage 6: Differential Decoding
self.digital_diff_decoder_bb_0 = digital.diff_decoder_bb(2)
self.blocks_not_xx_0 = blocks.not_bb()
self.blocks_and_const_xx_0 = blocks.and_const_bb(1)
# Stage 7: Output
self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb()
##################################################
# Connections
##################################################
self.connect((self, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.band_pass_filter_0, 0), (self.freq_xlating_fir_filter_xxx_0_0, 0))
self.connect((self.band_pass_filter_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blocks_complex_to_mag_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0_0, 0), (self.blocks_complex_to_mag_0_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.bruninga_direwolf_agc_0, 0))
self.connect((self.blocks_complex_to_mag_0_0, 0), (self.bruninga_direwolf_agc_0_0, 0))
self.connect((self.bruninga_direwolf_agc_0_0, 0), (self.blocks_sub_xx_1, 1))
self.connect((self.bruninga_direwolf_agc_0, 0), (self.blocks_sub_xx_1, 0))
self.connect((self.blocks_sub_xx_1, 0), (self.digital_clock_recovery_mm_xx_0, 0))
self.connect((self.digital_clock_recovery_mm_xx_0, 0), (self.digital_binary_slicer_fb_0, 0))
self.connect((self.digital_diff_decoder_bb_0, 0), (self.blocks_not_xx_0, 0))
self.connect((self.blocks_not_xx_0, 0), (self.blocks_and_const_xx_0, 0))
self.connect((self.blocks_and_const_xx_0, 0), (self, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.digital_diff_decoder_bb_0, 0))
def __init__( self,
carrier,
sideband,
transition,
sps,
interpolation,
looutdev):
gr.top_block.__init__(self, "Transmit block")
##################################################
# Variables
##################################################
self.samp_rate = SAMPLE_RATE
self.carrier = carrier
self.sideband = sideband
self.transition = transition
self.sps = sps
self.interpolation = interpolation
##################################################
# Blocks
##################################################
self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
interpolation=interpolation,
decimation=1,
taps=None,
fractional_bw=None,
)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(1, (firdes.band_pass (0.50,SAMPLE_RATE,carrier-sideband,carrier+sideband,transition)), -carrier, SAMPLE_RATE)
self.digital_gfsk_mod_0 = digital.gfsk_mod(
samples_per_symbol=sps,
sensitivity=1.0,
bt=0.35,
verbose=False,
log=False,
)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blks2_packet_encoder_0 = grc_blks2.packet_mod_b(grc_blks2.packet_encoder(
samples_per_symbol=sps,
bits_per_symbol=1,
preamble="",
access_code="",
pad_for_usrp=False,
),
payload_length=PAYLOAD_LEN,
)
self.audio_sink_0 = audio.sink(SAMPLE_RATE, looutdev, True)
self.source_queue = gr.msg_queue()
self.msg_source = blocks.message_source(gr.sizeof_char, self.source_queue)
##################################################
# Connections
##################################################
self.connect((self.msg_source, 0), (self.blks2_packet_encoder_0, 0))
self.connect((self.blks2_packet_encoder_0, 0), (self.digital_gfsk_mod_0, 0))
self.connect((self.digital_gfsk_mod_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.audio_sink_0, 0))
def update_filter(self):
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.samp_rate, self.low_freq, self.high_freq, 10, firdes.WIN_HAMMING, 6.76))
def set_bpf_base(self, bpf_base):
self.bpf_base = bpf_base
self.band_pass_filter_0.set_taps(firdes.band_pass(1, self.smux_filt_samprate, self.bpf_base, self.bpf_base+30e3, 500, firdes.WIN_KAISER, 6.76))