/
ofdm.py
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/
ofdm.py
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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: OFDM 256QAM
# Author: Muhammad Junaid
# Description: NRTC Haripur pk
# Generated: Wed Jul 8 00:46:14 2015
##################################################
from PyQt4 import Qt
from gnuradio import blocks
from gnuradio import digital
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import gr, digital, analog
from gnuradio import uhd
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from grc_gnuradio import blks2 as grc_blks2
from optparse import OptionParser
import sys
import time
from distutils.version import StrictVersion
class GSM_OFDM_LTE_E300(gr.top_block, Qt.QWidget):
def __init__(self, address="addr=192.168.10.2"):
gr.top_block.__init__(self, "OFDM 256QAM")
Qt.QWidget.__init__(self)
self.setWindowTitle("OFDM 256QAM")
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", "GSM_OFDM_LTE_E300")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Parameters
##################################################
self.address = address
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1e6
self.samp_0 = samp_0 = 6.5e6
self.CENTRAL_FREQEUNCY_USRP_Ch1 = CENTRAL_FREQEUNCY_USRP_Ch1 = 2145e6
self.BW_USRP = BW_USRP = 50e6
##################################################
# Blocks
##################################################
self.uhd_usrp_sink_0 = uhd.usrp_sink(
",".join(("", "")),
uhd.stream_args(
cpu_format="fc32",
args="scalar=1024",
channels=range(1),
),
)
self.uhd_usrp_sink_0.set_subdev_spec("B:0", 0)
self.uhd_usrp_sink_0.set_samp_rate(5e6)
self.uhd_usrp_sink_0.set_center_freq(CENTRAL_FREQEUNCY_USRP_Ch1, 0)
self.uhd_usrp_sink_0.set_gain(27, 0)
self.uhd_usrp_sink_0.set_antenna("TX/RX", 0)
self.uhd_usrp_sink_0.set_bandwidth(BW_USRP, 0)
self.digital_ofdm_mod_1 = grc_blks2.packet_mod_f(digital.ofdm_mod(
options=grc_blks2.options(
modulation="bpsk",
fft_length=1024,
occupied_tones=1000,
cp_length=0,
pad_for_usrp=True,
log=None,
verbose=None,
),
),
payload_length=0,
)
self.digital_cpmmod_bc_1 = digital.cpmmod_bc(analog.cpm.LREC, 2, 2, 2, 2)
self.blocks_vector_source_x_1 = blocks.vector_source_f((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,0,1, 1,0, 0, 1,0,1, 1, 1,0, 0, 1,0,1), True, 1, [])
self.blocks_vector_source_x_0_0_0 = blocks.vector_source_f((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,0,1, 1,0, 0, 1,0,1, 1, 1,0, 0, 1,0,1), True, 1, [])
self.blocks_vector_source_x_0_0 = blocks.vector_source_f((1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,0,1, 1,0, 0, 1,0,1, 1, 1,0, 0, 1,0,1), True, 1, [])
self.blocks_vector_source_x_0 = blocks.vector_source_f((1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,0,1, 1,0, 0, 1,0,1, 0, 1,0, 0, 1,0,1), True, 1, [])
self.blocks_float_to_char_0 = blocks.float_to_char(1, 1)
self.blocks_complex_to_real_0 = blocks.complex_to_real(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
##################################################
# Connections
##################################################
self.connect((self.blocks_add_xx_0, 0), (self.blocks_float_to_char_0, 0))
self.connect((self.blocks_complex_to_real_0, 0), (self.digital_ofdm_mod_1, 0))
self.connect((self.blocks_float_to_char_0, 0), (self.digital_cpmmod_bc_1, 0))
self.connect((self.blocks_vector_source_x_0, 0), (self.blocks_add_xx_0, 2))
self.connect((self.blocks_vector_source_x_0_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.blocks_vector_source_x_0_0_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.blocks_vector_source_x_1, 0), (self.blocks_add_xx_0, 3))
self.connect((self.digital_cpmmod_bc_1, 0), (self.blocks_complex_to_real_0, 0))
self.connect((self.digital_ofdm_mod_1, 0), (self.uhd_usrp_sink_0, 0))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "GSM_OFDM_LTE_E300")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_address(self):
return self.address
def set_address(self, address):
self.address = address
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
def get_samp_0(self):
return self.samp_0
def set_samp_0(self, samp_0):
self.samp_0 = samp_0
def get_CENTRAL_FREQEUNCY_USRP_Ch1(self):
return self.CENTRAL_FREQEUNCY_USRP_Ch1
def set_CENTRAL_FREQEUNCY_USRP_Ch1(self, CENTRAL_FREQEUNCY_USRP_Ch1):
self.CENTRAL_FREQEUNCY_USRP_Ch1 = CENTRAL_FREQEUNCY_USRP_Ch1
self.uhd_usrp_sink_0.set_center_freq(self.CENTRAL_FREQEUNCY_USRP_Ch1, 0)
self.uhd_usrp_sink_0.set_center_freq(self.CENTRAL_FREQEUNCY_USRP_Ch1, 1)
def get_BW_USRP(self):
return self.BW_USRP
def set_BW_USRP(self, BW_USRP):
self.BW_USRP = BW_USRP
self.uhd_usrp_sink_0.set_bandwidth(self.BW_USRP, 0)
self.uhd_usrp_sink_0.set_bandwidth(self.BW_USRP, 1)
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()"
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
parser.add_option("-a", "--address", dest="address", type="string", default="addr=192.168.10.2",
help="Set IP Address [default=%default]")
(options, args) = parser.parse_args()
if(StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0")):
Qt.QApplication.setGraphicsSystem(gr.prefs().get_string('qtgui','style','raster'))
qapp = Qt.QApplication(sys.argv)
tb = GSM_OFDM_LTE_E300(address=options.address)
tb.start()
tb.show()
def quitting():
tb.stop()
tb.wait()
qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
qapp.exec_()
tb = None #to clean up Qt widgets