/
top_block.py
executable file
·206 lines (178 loc) · 7.53 KB
/
top_block.py
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Top Block
# Generated: Wed Mar 18 10:20:53 2020
##################################################
if __name__ == '__main__':
import ctypes
import sys
if sys.platform.startswith('linux'):
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print "Warning: failed to XInitThreads()"
from gnuradio import analog
from gnuradio import blocks
from gnuradio import channels
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio import wxgui
from gnuradio.eng_option import eng_option
from gnuradio.fft import window
from gnuradio.filter import firdes
from gnuradio.wxgui import fftsink2
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import wx
class top_block(grc_wxgui.top_block_gui):
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
self.seed = seed = 128
self.m_rate = m_rate = 0.8
self.if_rate = if_rate = samp_rate*40
self.gauss = gauss = 0
self.fc = fc = 511e3
self.dpp = dpp = 100.0
##################################################
# Blocks
##################################################
self.wxgui_fftsink2_0_0 = fftsink2.fft_sink_f(
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.wxgui_fftsink2_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=if_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title='FFT Plot',
peak_hold=False,
)
self.Add(self.wxgui_fftsink2_0.win)
self.rational_resampler_xxx_0_1 = filter.rational_resampler_fff(
interpolation=3,
decimation=1,
taps=None,
fractional_bw=None,
)
self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff(
interpolation=40,
decimation=1,
taps=None,
fractional_bw=None,
)
self.low_pass_filter_0 = filter.interp_fir_filter_fff(1, firdes.low_pass(
1, samp_rate, 7500, 100, firdes.WIN_HAMMING, 6.76))
self.hilbert_fc_0 = filter.hilbert_fc(301, firdes.WIN_HAMMING, 6.76)
self.channels_fading_model_0 = channels.fading_model( 8, dpp/if_rate, False, 2, 256 )
self.blocks_wavfile_source_0 = blocks.wavfile_source('/media/akio/ssd1/fading_generator/5-263831-B-6.wav', True)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, samp_rate,True)
self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_float*1)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((m_rate, ))
self.blocks_add_const_vxx_0 = blocks.add_const_vff((1, ))
self.band_pass_filter_0 = filter.fir_filter_ccf(1, firdes.band_pass(
4, if_rate, fc-8e3, fc+8e3, 100, firdes.WIN_HAMMING, 6.76))
self.analog_sig_source_x_0_0 = analog.sig_source_f(if_rate, analog.GR_COS_WAVE, fc, 1, 0)
self.analog_am_demod_cf_0 = analog.am_demod_cf(
channel_rate=fc,
audio_decim=40,
audio_pass=7500,
audio_stop=10e3,
)
self.analog_agc_xx_0 = analog.agc_cc(1e-4, 1.0, 1.0)
self.analog_agc_xx_0.set_max_gain(65536)
##################################################
# Connections
##################################################
self.connect((self.analog_agc_xx_0, 0), (self.analog_am_demod_cf_0, 0))
self.connect((self.analog_am_demod_cf_0, 0), (self.blocks_null_sink_0, 0))
self.connect((self.analog_am_demod_cf_0, 0), (self.wxgui_fftsink2_0_0, 0))
self.connect((self.analog_sig_source_x_0_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.band_pass_filter_0, 0), (self.analog_agc_xx_0, 0))
self.connect((self.band_pass_filter_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.rational_resampler_xxx_0_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.hilbert_fc_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_wavfile_source_0, 0), (self.rational_resampler_xxx_0_1, 0))
self.connect((self.channels_fading_model_0, 0), (self.band_pass_filter_0, 0))
self.connect((self.hilbert_fc_0, 0), (self.channels_fading_model_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.rational_resampler_xxx_0_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.rational_resampler_xxx_0_1, 0), (self.low_pass_filter_0, 0))
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.set_if_rate(self.samp_rate*40)
self.wxgui_fftsink2_0_0.set_sample_rate(self.samp_rate)
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, 7500, 100, firdes.WIN_HAMMING, 6.76))
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
def get_seed(self):
return self.seed
def set_seed(self, seed):
self.seed = seed
def get_m_rate(self):
return self.m_rate
def set_m_rate(self, m_rate):
self.m_rate = m_rate
self.blocks_multiply_const_vxx_0.set_k((self.m_rate, ))
def get_if_rate(self):
return self.if_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 get_gauss(self):
return self.gauss
def set_gauss(self, gauss):
self.gauss = gauss
def get_fc(self):
return self.fc
def set_fc(self, fc):
self.fc = fc
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_frequency(self.fc)
def get_dpp(self):
return self.dpp
def set_dpp(self, dpp):
self.dpp = dpp
self.channels_fading_model_0.set_fDTs(self.dpp/self.if_rate)
def main(top_block_cls=top_block, options=None):
tb = top_block_cls()
tb.Start(True)
tb.Wait()
if __name__ == '__main__':
main()