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Last active August 29, 2015 14:20
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Fading Model attenuation test
Raw
fading_test.grc
<?xml version='1.0' encoding='ASCII'?>
<?grc format='1' created='3.7.8'?>
<flow_graph>
<timestamp>Fri May 8 09:31:33 2015</timestamp>
<block>
<key>options</key>
<param>
<key>id</key>
<value>fading_test</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>title</key>
<value></value>
</param>
<param>
<key>author</key>
<value></value>
</param>
<param>
<key>description</key>
<value></value>
</param>
<param>
<key>window_size</key>
<value>1280, 1024</value>
</param>
<param>
<key>generate_options</key>
<value>qt_gui</value>
</param>
<param>
<key>category</key>
<value>Custom</value>
</param>
<param>
<key>run_options</key>
<value>prompt</value>
</param>
<param>
<key>run</key>
<value>True</value>
</param>
<param>
<key>max_nouts</key>
<value>0</value>
</param>
<param>
<key>realtime_scheduling</key>
<value></value>
</param>
<param>
<key>thread_safe_setters</key>
<value></value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(0, 93)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>samp_rate</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>1e6</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(168, 93)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_throttle</key>
<param>
<key>id</key>
<value>blocks_throttle_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>samples_per_second</key>
<value>samp_rate</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>ignoretag</key>
<value>True</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(168, 12)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>analog_noise_source_x</key>
<param>
<key>id</key>
<value>analog_noise_source_x_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>noise_type</key>
<value>analog.GR_GAUSSIAN</value>
</param>
<param>
<key>amp</key>
<value>1</value>
</param>
<param>
<key>seed</key>
<value>0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(0, -2)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_complex_to_mag_squared</key>
<param>
<key>id</key>
<value>blocks_complex_to_mag_squared_1</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(608, 88)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_complex_to_mag_squared</key>
<param>
<key>id</key>
<value>blocks_complex_to_mag_squared_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(608, 16)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>fir_filter_xxx</key>
<param>
<key>id</key>
<value>fir_filter_xxx_0_0_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>fff</value>
</param>
<param>
<key>decim</key>
<value>100</value>
</param>
<param>
<key>taps</key>
<value>firdes.low_pass(1.0, samp_rate, samp_rate/200, samp_rate/200)</value>
</param>
<param>
<key>samp_delay</key>
<value>0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(800, 5)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>fir_filter_xxx</key>
<param>
<key>id</key>
<value>fir_filter_xxx_0_0_0_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>fff</value>
</param>
<param>
<key>decim</key>
<value>100</value>
</param>
<param>
<key>taps</key>
<value>firdes.low_pass(1.0, samp_rate, samp_rate/200, samp_rate/200)</value>
</param>
<param>
<key>samp_delay</key>
<value>0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(800, 77)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>channels_fading_model</key>
<param>
<key>id</key>
<value>channels_fading_model_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>N</key>
<value>8</value>
</param>
<param>
<key>fDTs</key>
<value>10.0/samp_rate</value>
</param>
<param>
<key>LOS</key>
<value>False</value>
</param>
<param>
<key>K</key>
<value>4.0</value>
</param>
<param>
<key>seed</key>
<value>0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(352, 63)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>qtgui_time_sink_x</key>
<param>
<key>id</key>
<value>vis</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>name</key>
<value>""</value>
</param>
<param>
<key>ylabel</key>
<value>Amplitude</value>
</param>
<param>
<key>yunit</key>
<value>""</value>
</param>
<param>
<key>size</key>
<value>10000</value>
</param>
<param>
<key>srate</key>
<value>samp_rate/100</value>
</param>
<param>
<key>grid</key>
<value>True</value>
</param>
<param>
<key>autoscale</key>
<value>False</value>
</param>
<param>
<key>ymin</key>
<value>-0.1</value>
</param>
<param>
<key>ymax</key>
<value>15</value>
</param>
<param>
<key>nconnections</key>
<value>2</value>
</param>
<param>
<key>update_time</key>
<value>0.10</value>
</param>
<param>
<key>entags</key>
<value>True</value>
</param>
<param>
<key>gui_hint</key>
<value></value>
</param>
<param>
<key>tr_mode</key>
<value>qtgui.TRIG_MODE_FREE</value>
</param>
<param>
<key>tr_slope</key>
<value>qtgui.TRIG_SLOPE_POS</value>
</param>
<param>
<key>tr_level</key>
<value>1.0</value>
</param>
<param>
<key>tr_delay</key>
<value>0</value>
</param>
<param>
<key>tr_chan</key>
<value>0</value>
</param>
<param>
<key>tr_tag</key>
<value>""</value>
</param>
<param>
<key>ctrlpanel</key>
<value>False</value>
</param>
<param>
<key>legend</key>
<value>True</value>
</param>
<param>
<key>label1</key>
<value>In/out power ratio [dB]</value>
</param>
<param>
<key>width1</key>
<value>1</value>
</param>
<param>
<key>color1</key>
<value>"blue"</value>
</param>
<param>
<key>style1</key>
<value>1</value>
</param>
<param>
<key>marker1</key>
<value>-1</value>
</param>
<param>
<key>alpha1</key>
<value>1.0</value>
</param>
<param>
<key>label2</key>
<value>Equal Power</value>
</param>
<param>
<key>width2</key>
<value>1</value>
</param>
<param>
<key>color2</key>
<value>"magenta"</value>
</param>
<param>
<key>style2</key>
<value>4</value>
</param>
<param>
<key>marker2</key>
<value>-1</value>
</param>
<param>
<key>alpha2</key>
<value>0.75</value>
</param>
<param>
<key>label3</key>
<value></value>
</param>
<param>
<key>width3</key>
<value>1</value>
</param>
<param>
<key>color3</key>
<value>"green"</value>
</param>
<param>
<key>style3</key>
<value>1</value>
</param>
<param>
<key>marker3</key>
<value>-1</value>
</param>
<param>
<key>alpha3</key>
<value>1.0</value>
</param>
<param>
<key>label4</key>
<value></value>
</param>
<param>
<key>width4</key>
<value>1</value>
</param>
<param>
<key>color4</key>
<value>"black"</value>
</param>
<param>
<key>style4</key>
<value>1</value>
</param>
<param>
<key>marker4</key>
<value>-1</value>
</param>
<param>
<key>alpha4</key>
<value>1.0</value>
</param>
<param>
<key>label5</key>
<value></value>
</param>
<param>
<key>width5</key>
<value>1</value>
</param>
<param>
<key>color5</key>
<value>"cyan"</value>
</param>
<param>
<key>style5</key>
<value>1</value>
</param>
<param>
<key>marker5</key>
<value>-1</value>
</param>
<param>
<key>alpha5</key>
<value>1.0</value>
</param>
<param>
<key>label6</key>
<value></value>
</param>
<param>
<key>width6</key>
<value>1</value>
</param>
<param>
<key>color6</key>
<value>"magenta"</value>
</param>
<param>
<key>style6</key>
<value>1</value>
</param>
<param>
<key>marker6</key>
<value>-1</value>
</param>
<param>
<key>alpha6</key>
<value>1.0</value>
</param>
<param>
<key>label7</key>
<value></value>
</param>
<param>
<key>width7</key>
<value>1</value>
</param>
<param>
<key>color7</key>
<value>"yellow"</value>
</param>
<param>
<key>style7</key>
<value>1</value>
</param>
<param>
<key>marker7</key>
<value>-1</value>
</param>
<param>
<key>alpha7</key>
<value>1.0</value>
</param>
<param>
<key>label8</key>
<value></value>
</param>
<param>
<key>width8</key>
<value>1</value>
</param>
<param>
<key>color8</key>
<value>"dark red"</value>
</param>
<param>
<key>style8</key>
<value>1</value>
</param>
<param>
<key>marker8</key>
<value>-1</value>
</param>
<param>
<key>alpha8</key>
<value>1.0</value>
</param>
<param>
<key>label9</key>
<value></value>
</param>
<param>
<key>width9</key>
<value>1</value>
</param>
<param>
<key>color9</key>
<value>"dark green"</value>
</param>
<param>
<key>style9</key>
<value>1</value>
</param>
<param>
<key>marker9</key>
<value>-1</value>
</param>
<param>
<key>alpha9</key>
<value>1.0</value>
</param>
<param>
<key>label10</key>
<value></value>
</param>
<param>
<key>width10</key>
<value>1</value>
</param>
<param>
<key>color10</key>
<value>"blue"</value>
</param>
<param>
<key>style10</key>
<value>1</value>
</param>
<param>
<key>marker10</key>
<value>-1</value>
</param>
<param>
<key>alpha10</key>
<value>1.0</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(1144, 70)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>analog_const_source_x</key>
<param>
<key>id</key>
<value>thresh</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>const</key>
<value>1</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(952, 124)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_divide_xx</key>
<param>
<key>id</key>
<value>blocks_divide_xx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>num_inputs</key>
<value>2</value>
</param>
<param>
<key>alias</key>
<value></value>
</param>
<param>
<key>affinity</key>
<value></value>
</param>
<param>
<key>minoutbuf</key>
<value>0</value>
</param>
<param>
<key>maxoutbuf</key>
<value>0</value>
</param>
<param>
<key>comment</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(1016, 56)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>blocks_complex_to_mag_squared_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>channels_fading_model_0</source_block_id>
<sink_block_id>blocks_complex_to_mag_squared_1</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>channels_fading_model_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>analog_noise_source_x_0</source_block_id>
<sink_block_id>blocks_throttle_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_complex_to_mag_squared_1</source_block_id>
<sink_block_id>fir_filter_xxx_0_0_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>fir_filter_xxx_0_0_0</source_block_id>
<sink_block_id>blocks_divide_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>fir_filter_xxx_0_0_0_0</source_block_id>
<sink_block_id>blocks_divide_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
<connection>
<source_block_id>blocks_complex_to_mag_squared_0</source_block_id>
<sink_block_id>fir_filter_xxx_0_0_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_divide_xx_0</source_block_id>
<sink_block_id>vis</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>thresh</source_block_id>
<sink_block_id>vis</sink_block_id>
<source_key>0</source_key>
<sink_key>1</sink_key>
</connection>
</flow_graph>
Raw
fading_test.py
#!/usr/bin/env python2
##################################################
# GNU Radio Python Flow Graph
# Title: Fading Test
# Generated: Fri May 8 11:58:44 2015
##################################################
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 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 sip
import sys
from distutils.version import StrictVersion
class fading_test(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "Fading Test")
Qt.QWidget.__init__(self)
self.setWindowTitle("Fading Test")
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", "fading_test")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1e6
##################################################
# Blocks
##################################################
self.vis = qtgui.time_sink_f(
10000, #size
samp_rate/100, #samp_rate
"", #name
2 #number of inputs
)
self.vis.set_update_time(0.10)
self.vis.set_y_axis(-0.1, 15)
self.vis.set_y_label("Amplitude", "")
self.vis.enable_tags(-1, True)
self.vis.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 1.0, 0, 0, "")
self.vis.enable_autoscale(False)
self.vis.enable_grid(True)
self.vis.enable_control_panel(False)
if not True:
self.vis.disable_legend()
labels = ["In/out power ratio [dB]", "Equal Power", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "magenta", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "blue"]
styles = [1, 4, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
alphas = [1.0, 0.75, 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.vis.set_line_label(i, "Data {0}".format(i))
else:
self.vis.set_line_label(i, labels[i])
self.vis.set_line_width(i, widths[i])
self.vis.set_line_color(i, colors[i])
self.vis.set_line_style(i, styles[i])
self.vis.set_line_marker(i, markers[i])
self.vis.set_line_alpha(i, alphas[i])
self._vis_win = sip.wrapinstance(self.vis.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._vis_win)
self.thresh = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 1)
self.fir_filter_xxx_0_0_0_0 = filter.fir_filter_fff(100, (firdes.low_pass(1.0, samp_rate, samp_rate/200, samp_rate/200)))
self.fir_filter_xxx_0_0_0_0.declare_sample_delay(0)
self.fir_filter_xxx_0_0_0 = filter.fir_filter_fff(100, (firdes.low_pass(1.0, samp_rate, samp_rate/200, samp_rate/200)))
self.fir_filter_xxx_0_0_0.declare_sample_delay(0)
self.channels_fading_model_0 = channels.fading_model( 8, 10.0/samp_rate, False, 4.0, 0 )
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
self.blocks_divide_xx_0 = blocks.divide_ff(1)
self.blocks_complex_to_mag_squared_1 = blocks.complex_to_mag_squared(1)
self.blocks_complex_to_mag_squared_0 = blocks.complex_to_mag_squared(1)
self.analog_noise_source_x_0 = analog.noise_source_c(analog.GR_GAUSSIAN, 1, 0)
##################################################
# Connections
##################################################
self.connect((self.analog_noise_source_x_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_complex_to_mag_squared_0, 0), (self.fir_filter_xxx_0_0_0, 0))
self.connect((self.blocks_complex_to_mag_squared_1, 0), (self.fir_filter_xxx_0_0_0_0, 0))
self.connect((self.blocks_divide_xx_0, 0), (self.vis, 0))
self.connect((self.blocks_throttle_0, 0), (self.blocks_complex_to_mag_squared_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.channels_fading_model_0, 0))
self.connect((self.channels_fading_model_0, 0), (self.blocks_complex_to_mag_squared_1, 0))
self.connect((self.fir_filter_xxx_0_0_0, 0), (self.blocks_divide_xx_0, 0))
self.connect((self.fir_filter_xxx_0_0_0_0, 0), (self.blocks_divide_xx_0, 1))
self.connect((self.thresh, 0), (self.vis, 1))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "fading_test")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.blocks_throttle_0.set_sample_rate(self.samp_rate)
self.fir_filter_xxx_0_0_0.set_taps((firdes.low_pass(1.0, self.samp_rate, self.samp_rate/200, self.samp_rate/200)))
self.fir_filter_xxx_0_0_0_0.set_taps((firdes.low_pass(1.0, self.samp_rate, self.samp_rate/200, self.samp_rate/200)))
self.channels_fading_model_0.set_fDTs(10.0/self.samp_rate)
self.vis.set_samp_rate(self.samp_rate/100)
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(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 = fading_test()
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
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