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pocsag_demod.py
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Pocsag Demod
# Generated: Wed Mar 18 16:31:45 2020
##################################################
from distutils.version import StrictVersion
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 PyQt5 import Qt
from PyQt5 import Qt, QtCore
from gnuradio import analog
from gnuradio import blocks
from gnuradio import digital
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio import qtgui
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import math
import osmosdr
import sip
import sys
import time
from gnuradio import qtgui
class pocsag_demod(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "Pocsag Demod")
Qt.QWidget.__init__(self)
self.setWindowTitle("Pocsag Demod")
qtgui.util.check_set_qss()
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", "pocsag_demod")
if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
self.restoreGeometry(self.settings.value("geometry").toByteArray())
else:
self.restoreGeometry(self.settings.value("geometry", type=QtCore.QByteArray))
##################################################
# Variables
##################################################
self.udp_port = udp_port = 5125
self.symbol_rate_2 = symbol_rate_2 = 1200
self.symbol_rate = symbol_rate = 1200
self.samp_rate = samp_rate = 1.8e6
self.ip_addr = ip_addr = "127.0.0.1"
self.fsk_deviation_hz = fsk_deviation_hz = 2.5e3
self.decimation = decimation = 10
self.center_freq_2 = center_freq_2 = 158.103e6
self.center_freq = center_freq = 152.180e6
##################################################
# Blocks
##################################################
self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
self.rtlsdr_source_0.set_clock_source('internal', 0)
self.rtlsdr_source_0.set_sample_rate(samp_rate)
self.rtlsdr_source_0.set_center_freq(center_freq, 0)
self.rtlsdr_source_0.set_freq_corr(0, 0)
self.rtlsdr_source_0.set_dc_offset_mode(0, 0)
self.rtlsdr_source_0.set_iq_balance_mode(0, 0)
self.rtlsdr_source_0.set_gain_mode(False, 0)
self.rtlsdr_source_0.set_gain(10, 0)
self.rtlsdr_source_0.set_if_gain(20, 0)
self.rtlsdr_source_0.set_bb_gain(20, 0)
self.rtlsdr_source_0.set_antenna('', 0)
self.rtlsdr_source_0.set_bandwidth(samp_rate/2, 0)
self.root_raised_cosine_filter_0 = filter.fir_filter_fff(1, firdes.root_raised_cosine(
1, samp_rate/decimation, symbol_rate, 0.35, 45))
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
1024, #size
samp_rate, #samp_rate
"", #name
1 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-1, 1)
self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")
self.qtgui_time_sink_x_0.enable_tags(-1, True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
self.qtgui_time_sink_x_0.enable_grid(False)
self.qtgui_time_sink_x_0.enable_axis_labels(True)
self.qtgui_time_sink_x_0.enable_control_panel(False)
self.qtgui_time_sink_x_0.enable_stem_plot(False)
if not True:
self.qtgui_time_sink_x_0.disable_legend()
labels = ['', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "blue"]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.qtgui_freq_sink_x_1 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"", #name
1 #number of inputs
)
self.qtgui_freq_sink_x_1.set_update_time(0.10)
self.qtgui_freq_sink_x_1.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_1.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_1.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_1.enable_autoscale(False)
self.qtgui_freq_sink_x_1.enable_grid(False)
self.qtgui_freq_sink_x_1.set_fft_average(1.0)
self.qtgui_freq_sink_x_1.enable_axis_labels(True)
self.qtgui_freq_sink_x_1.enable_control_panel(False)
if not True:
self.qtgui_freq_sink_x_1.disable_legend()
if "complex" == "float" or "complex" == "msg_float":
self.qtgui_freq_sink_x_1.set_plot_pos_half(not True)
labels = ['', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_1.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_1.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_1.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_1.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_1.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_1_win = sip.wrapinstance(self.qtgui_freq_sink_x_1.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_freq_sink_x_1_win)
self.qtgui_const_sink_x_0 = qtgui.const_sink_c(
1024, #size
"", #name
1 #number of inputs
)
self.qtgui_const_sink_x_0.set_update_time(0.10)
self.qtgui_const_sink_x_0.set_y_axis(-2, 2)
self.qtgui_const_sink_x_0.set_x_axis(-2, 2)
self.qtgui_const_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, "")
self.qtgui_const_sink_x_0.enable_autoscale(False)
self.qtgui_const_sink_x_0.enable_grid(False)
self.qtgui_const_sink_x_0.enable_axis_labels(True)
if not True:
self.qtgui_const_sink_x_0.disable_legend()
labels = ['', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "red", "red", "red",
"red", "red", "red", "red", "red"]
styles = [0, 0, 0, 0, 0,
0, 0, 0, 0, 0]
markers = [0, 0, 0, 0, 0,
0, 0, 0, 0, 0]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_const_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_const_sink_x_0.set_line_label(i, labels[i])
self.qtgui_const_sink_x_0.set_line_width(i, widths[i])
self.qtgui_const_sink_x_0.set_line_color(i, colors[i])
self.qtgui_const_sink_x_0.set_line_style(i, styles[i])
self.qtgui_const_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_const_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_const_sink_x_0_win = sip.wrapinstance(self.qtgui_const_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_const_sink_x_0_win)
self.freq_xlating_fir_filter_xxx_0 = filter.freq_xlating_fir_filter_ccc(decimation, (firdes.low_pass(5, samp_rate, fsk_deviation_hz,fsk_deviation_hz*2)), 0, samp_rate)
self.digital_clock_recovery_mm_xx_0 = digital.clock_recovery_mm_ff(samp_rate/(decimation*symbol_rate)*(1+0.0), 0.01, 0, 0.1, 0.01)
self.digital_binary_slicer_fb_0 = digital.binary_slicer_fb()
self.blocks_udp_sink_0 = blocks.udp_sink(gr.sizeof_char*1472, ip_addr, udp_port, 1472, True)
self.blocks_stream_to_vector_0 = blocks.stream_to_vector(gr.sizeof_char*1, 1472)
self.analog_quadrature_demod_cf_0 = analog.quadrature_demod_cf(samp_rate/(2*math.pi*fsk_deviation_hz/8.0))
##################################################
# Connections
##################################################
self.connect((self.analog_quadrature_demod_cf_0, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.analog_quadrature_demod_cf_0, 0), (self.root_raised_cosine_filter_0, 0))
self.connect((self.blocks_stream_to_vector_0, 0), (self.blocks_udp_sink_0, 0))
self.connect((self.digital_binary_slicer_fb_0, 0), (self.blocks_stream_to_vector_0, 0))
self.connect((self.digital_clock_recovery_mm_xx_0, 0), (self.digital_binary_slicer_fb_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.analog_quadrature_demod_cf_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.qtgui_const_sink_x_0, 0))
self.connect((self.freq_xlating_fir_filter_xxx_0, 0), (self.qtgui_freq_sink_x_1, 0))
self.connect((self.root_raised_cosine_filter_0, 0), (self.digital_clock_recovery_mm_xx_0, 0))
self.connect((self.rtlsdr_source_0, 0), (self.freq_xlating_fir_filter_xxx_0, 0))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "pocsag_demod")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_udp_port(self):
return self.udp_port
def set_udp_port(self, udp_port):
self.udp_port = udp_port
def get_symbol_rate_2(self):
return self.symbol_rate_2
def set_symbol_rate_2(self, symbol_rate_2):
self.symbol_rate_2 = symbol_rate_2
def get_symbol_rate(self):
return self.symbol_rate
def set_symbol_rate(self, symbol_rate):
self.symbol_rate = symbol_rate
self.root_raised_cosine_filter_0.set_taps(firdes.root_raised_cosine(1, self.samp_rate/self.decimation, self.symbol_rate, 0.35, 45))
self.digital_clock_recovery_mm_xx_0.set_omega(self.samp_rate/(self.decimation*self.symbol_rate)*(1+0.0))
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.rtlsdr_source_0.set_sample_rate(self.samp_rate)
self.rtlsdr_source_0.set_bandwidth(self.samp_rate/2, 0)
self.root_raised_cosine_filter_0.set_taps(firdes.root_raised_cosine(1, self.samp_rate/self.decimation, self.symbol_rate, 0.35, 45))
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.qtgui_freq_sink_x_1.set_frequency_range(0, self.samp_rate)
self.freq_xlating_fir_filter_xxx_0.set_taps((firdes.low_pass(5, self.samp_rate, self.fsk_deviation_hz,self.fsk_deviation_hz*2)))
self.digital_clock_recovery_mm_xx_0.set_omega(self.samp_rate/(self.decimation*self.symbol_rate)*(1+0.0))
self.analog_quadrature_demod_cf_0.set_gain(self.samp_rate/(2*math.pi*self.fsk_deviation_hz/8.0))
def get_ip_addr(self):
return self.ip_addr
def set_ip_addr(self, ip_addr):
self.ip_addr = ip_addr
def get_fsk_deviation_hz(self):
return self.fsk_deviation_hz
def set_fsk_deviation_hz(self, fsk_deviation_hz):
self.fsk_deviation_hz = fsk_deviation_hz
self.freq_xlating_fir_filter_xxx_0.set_taps((firdes.low_pass(5, self.samp_rate, self.fsk_deviation_hz,self.fsk_deviation_hz*2)))
self.analog_quadrature_demod_cf_0.set_gain(self.samp_rate/(2*math.pi*self.fsk_deviation_hz/8.0))
def get_decimation(self):
return self.decimation
def set_decimation(self, decimation):
self.decimation = decimation
self.root_raised_cosine_filter_0.set_taps(firdes.root_raised_cosine(1, self.samp_rate/self.decimation, self.symbol_rate, 0.35, 45))
self.digital_clock_recovery_mm_xx_0.set_omega(self.samp_rate/(self.decimation*self.symbol_rate)*(1+0.0))
def get_center_freq_2(self):
return self.center_freq_2
def set_center_freq_2(self, center_freq_2):
self.center_freq_2 = center_freq_2
def get_center_freq(self):
return self.center_freq
def set_center_freq(self, center_freq):
self.center_freq = center_freq
self.rtlsdr_source_0.set_center_freq(self.center_freq, 0)
def main(top_block_cls=pocsag_demod, options=None):
if StrictVersion("4.5.0") <= StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
style = gr.prefs().get_string('qtgui', 'style', 'raster')
Qt.QApplication.setGraphicsSystem(style)
qapp = Qt.QApplication(sys.argv)
tb = top_block_cls()
tb.start()
tb.show()
def quitting():
tb.stop()
tb.wait()
qapp.aboutToQuit.connect(quitting)
qapp.exec_()
if __name__ == '__main__':
main()