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gmsk_transmitter.py
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: gmsk_transmitter
# Author: Alireza khayyatiyan
# Description: AUT:bachelor thesis
# Generated: Fri Jan 20 22:19:50 2023
##################################################
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 PyQt4 import Qt
from gnuradio import analog
from gnuradio import blocks
from gnuradio import channels
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 gnuradio.qtgui import Range, RangeWidget
from grc_gnuradio import blks2 as grc_blks2
from optparse import OptionParser
import math
import numpy as np
import pmt
import sip
import sys
from gnuradio import qtgui
class gmsk_transmitter(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "gmsk_transmitter")
Qt.QWidget.__init__(self)
self.setWindowTitle("gmsk_transmitter")
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", "gmsk_transmitter")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.sps = sps = 2
self.snr_db = snr_db = 10
self.gaussian_taps = gaussian_taps = filter.firdes.gaussian(1,sps,0.3,4*sps)
self.taps = taps = np.convolve(np.array(gaussian_taps),np.array((1,)*sps))
self.sensitivity = sensitivity = np.pi/(2*sps)
self.samp_rate = samp_rate = 1e6
self.noisevar = noisevar = 10**(-snr_db/10.0)
self.gainUSRP = gainUSRP = 35
self.frf = frf = 2.2e9
##################################################
# Blocks
##################################################
self._snr_db_range = Range(-10, 10, 1, 10, 200)
self._snr_db_win = RangeWidget(self._snr_db_range, self.set_snr_db, 'SNR (dB)', "counter_slider", float)
self.top_grid_layout.addWidget(self._snr_db_win)
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"", #name
2 #number of inputs
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0, "")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(True)
self.qtgui_freq_sink_x_0.set_fft_average(0.2)
self.qtgui_freq_sink_x_0.enable_axis_labels(True)
self.qtgui_freq_sink_x_0.enable_control_panel(False)
if not True:
self.qtgui_freq_sink_x_0.disable_legend()
if "complex" == "float" or "complex" == "msg_float":
self.qtgui_freq_sink_x_0.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(2):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win = sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_grid_layout.addWidget(self._qtgui_freq_sink_x_0_win)
self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass(
1, samp_rate, samp_rate/2/1.42, samp_rate/20/1.42*50/35, firdes.WIN_HAMMING, 6.76))
self.interp_fir_filter_xxx_0 = filter.interp_fir_filter_fff(sps, (taps))
self.interp_fir_filter_xxx_0.declare_sample_delay(0)
self.digital_symbol_sync_xx_0 = digital.symbol_sync_ff(digital.TED_MOD_MUELLER_AND_MULLER, sps, 0.045, 1.0, 1.0, 1.5, 1, digital.constellation_bpsk().base(), digital.IR_MMSE_8TAP, 128, ([]))
self.digital_chunks_to_symbols_xx_0_0_0 = digital.chunks_to_symbols_bf(([-1,1]), 1)
self.digital_binary_slicer_fb_1 = digital.binary_slicer_fb()
self.channels_fading_model_0 = channels.fading_model( 8, 100.0/samp_rate, True, 12, 0 )
self.channels_cfo_model_0_0 = channels.cfo_model(
samp_rate,
0.01,
1e3,
0
)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_packed_to_unpacked_xx_0 = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((.5, ))
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_char*1, 'E:\\webcam\\grc\\bhqethcjrxxw.jpg', False)
self.blocks_file_source_0.set_begin_tag(pmt.PMT_NIL)
self.blocks_file_sink_1 = blocks.file_sink(gr.sizeof_char*1, 'E:\\webcam\\grc\\image.jpg', False)
self.blocks_file_sink_1.set_unbuffered(False)
self.blocks_add_xx_0 = blocks.add_vcc(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=True,
),
payload_length=0,
)
self.blks2_packet_decoder_0 = grc_blks2.packet_demod_b(grc_blks2.packet_decoder(
access_code='',
threshold=-1,
callback=lambda ok, payload: self.blks2_packet_decoder_0.recv_pkt(ok, payload),
),
)
self.analog_quadrature_demod_cf_0 = analog.quadrature_demod_cf(1.0/sensitivity)
self.analog_noise_source_x_0 = analog.noise_source_c(analog.GR_GAUSSIAN, noisevar, 0)
self.analog_frequency_modulator_fc_0 = analog.frequency_modulator_fc(sensitivity)
self.analog_agc3_xx_0 = analog.agc3_cc(1e-3, 1e-4, 1.0, 1.0, 1)
self.analog_agc3_xx_0.set_max_gain(65536)
##################################################
# Connections
##################################################
self.connect((self.analog_agc3_xx_0, 0), (self.analog_quadrature_demod_cf_0, 0))
self.connect((self.analog_frequency_modulator_fc_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.analog_quadrature_demod_cf_0, 0), (self.digital_symbol_sync_xx_0, 0))
self.connect((self.blks2_packet_decoder_0, 0), (self.blocks_file_sink_1, 0))
self.connect((self.blks2_packet_encoder_0, 0), (self.blocks_packed_to_unpacked_xx_0, 0))
self.connect((self.blocks_add_xx_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_file_source_0, 0), (self.blks2_packet_encoder_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_multiply_xx_0, 2))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.blocks_multiply_xx_0, 3))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.channels_fading_model_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.qtgui_freq_sink_x_0, 0))
self.connect((self.blocks_packed_to_unpacked_xx_0, 0), (self.digital_chunks_to_symbols_xx_0_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.channels_cfo_model_0_0, 0), (self.low_pass_filter_0, 0))
self.connect((self.channels_cfo_model_0_0, 0), (self.qtgui_freq_sink_x_0, 1))
self.connect((self.channels_fading_model_0, 0), (self.channels_cfo_model_0_0, 0))
self.connect((self.digital_binary_slicer_fb_1, 0), (self.blks2_packet_decoder_0, 0))
self.connect((self.digital_chunks_to_symbols_xx_0_0_0, 0), (self.interp_fir_filter_xxx_0, 0))
self.connect((self.digital_symbol_sync_xx_0, 0), (self.digital_binary_slicer_fb_1, 0))
self.connect((self.interp_fir_filter_xxx_0, 0), (self.analog_frequency_modulator_fc_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_agc3_xx_0, 0))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "gmsk_transmitter")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_sps(self):
return self.sps
def set_sps(self, sps):
self.sps = sps
self.set_taps(np.convolve(np.array(self.gaussian_taps),np.array((1,)*self.sps)))
self.set_sensitivity(np.pi/(2*self.sps))
self.set_gaussian_taps(filter.firdes.gaussian(1,self.sps,0.3,4*self.sps))
def get_snr_db(self):
return self.snr_db
def set_snr_db(self, snr_db):
self.snr_db = snr_db
self.set_noisevar(10**(-self.snr_db/10.0))
def get_gaussian_taps(self):
return self.gaussian_taps
def set_gaussian_taps(self, gaussian_taps):
self.gaussian_taps = gaussian_taps
self.set_taps(np.convolve(np.array(self.gaussian_taps),np.array((1,)*self.sps)))
def get_taps(self):
return self.taps
def set_taps(self, taps):
self.taps = taps
self.interp_fir_filter_xxx_0.set_taps((self.taps))
def get_sensitivity(self):
return self.sensitivity
def set_sensitivity(self, sensitivity):
self.sensitivity = sensitivity
self.analog_quadrature_demod_cf_0.set_gain(1.0/self.sensitivity)
self.analog_frequency_modulator_fc_0.set_sensitivity(self.sensitivity)
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, self.samp_rate/2/1.42, self.samp_rate/20/1.42*50/35, firdes.WIN_HAMMING, 6.76))
self.channels_fading_model_0.set_fDTs(100.0/self.samp_rate)
self.channels_cfo_model_0_0.set_samp_rate(self.samp_rate)
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
def get_noisevar(self):
return self.noisevar
def set_noisevar(self, noisevar):
self.noisevar = noisevar
self.analog_noise_source_x_0.set_amplitude(self.noisevar)
def get_gainUSRP(self):
return self.gainUSRP
def set_gainUSRP(self, gainUSRP):
self.gainUSRP = gainUSRP
def get_frf(self):
return self.frf
def set_frf(self, frf):
self.frf = frf
def main(top_block_cls=gmsk_transmitter, options=None):
from distutils.version import StrictVersion
if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
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.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
qapp.exec_()
if __name__ == '__main__':
main()