def __init__(self, seed,fD,chan_pwrs,path_delays,flag_indep=False,flag_norm=True,flag_fadeEnable=False):
gr.hier_block2.__init__(self,
"multipath_rayleigh_cc",
gr.io_signature(1, 1, gr.sizeof_gr_complex*1), # Input signature
gr.io_signature(1, 1, gr.sizeof_gr_complex*1)) # Output signature
##################################################
# Parameters
##################################################
self.fD = fD #Doppler Bandwidth = fd*(1.0/chan_rate)
self.chan_pwrs = chan_pwrs
self.path_delays_samples = path_delays
self.chan_seed = seed
self.mode = flag_fadeEnable #Enables fading for underlaying single path fading block
# Checks that there is the same number of delays as there are powers.
if len(self.chan_pwrs) != len(self.path_delays_us):
raise ValueError, "The vector length of chan_pwrs does not match the vector length of path_delays."
# Could this be improved?
sys.exit(1)
self.c2f_blks = [] # for list of gr.complex_to_float().
self.delay_blks = [] # for list of gr.filter_delay_fc ().
self.chan_blks = [] # for list of tait.flat_rayleigh_channel_cc().
# Normalizes the channel powers if required
if flag_norm is True:
self.chan_pwrs = 1.0*np.array(chan_pwrs)/np.sqrt((chan_pwrs ** 2).sum(-1))
# Populate the lists above with the correct number of blocks.
for i in range (len(self.path_delays_samples)):
print "create delay block %d" %(i)
# Delay block is required.
self.delay_blks.append(gr.delay(gr.sizeof_gr_complex*1, int(self.path_delays_samples[i])))
self.chan_blks.append(rccBlocks.rayleighChan_cc(chan_seed + i, self.fD, self.chan_pwrs[i], flag_indep,self.mode))
self.sum = gr.add_vcc(1)
# Create multiple instances of the "src -> delay -> channel" connection.
for i in range (len(self.chan_blks)):
print i
self.connect( (self,0), (self.chan_blks[i],0) )
self.connect( (self.chan_blks[i],0), (self.delay_blks[i],0) )
self.connect( (self.delay_blks[i],0), (self.sum, i) )
#self.connect( (self,0), (self.chan_blks[0],0) )
#self.connect( (self.chan_blks[0],0), (self.delay_blks[0],0) )
#self.connect( (self.delay_blks[0],0), (self, 0) )
self.connect((self.sum, 0), (self,0) )
def __init__(self):
gr.top_block.__init__(self, "Static RF or Single Path Rayleigh Faded RF")
##################################################
# Variables
##################################################
self.usrpRate = usrpRate = 250e3
self.fd = fd = 20
self.fdTs = fdTs = fd*(1.0/usrpRate)
self.fadeMode = fadeMode = 0
self.centreFreq = centreFreq = 1e6
self.baseband_multiplier = baseband_multiplier = 0.25
self.atten = atten = 0
##################################################
# Blocks
##################################################
self.xmlrpc_server_0 = SimpleXMLRPCServer.SimpleXMLRPCServer(("0.0.0.0", 1234), allow_none=True)
self.xmlrpc_server_0.register_instance(self)
threading.Thread(target=self.xmlrpc_server_0.serve_forever).start()
self.uhd_usrp_sink_0_0_0 = uhd.usrp_sink(
device_addr="",
stream_args=uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink_0_0_0.set_subdev_spec("B:AB", 0)
self.uhd_usrp_sink_0_0_0.set_samp_rate(usrpRate)
self.uhd_usrp_sink_0_0_0.set_center_freq(centreFreq, 0)
self.uhd_usrp_sink_0_0_0.set_gain(0, 0)
self.rccBlocks_rayleighChan_cc_0 = rccBlocks.rayleighChan_cc(randint(-10e3, 0), fdTs, 1.0, False, bool(fadeMode))
self.rccBlocks_VNXLabBrick_0 = rccBlocks.VNXLabBrick(atten)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, usrpRate,True)
self.blocks_multiply_const_vxx_1 = blocks.multiply_const_vcc((baseband_multiplier, ))
self.analog_const_source_x_1 = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 1)
self.analog_const_source_x_0 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, 1+1j)
##################################################
# Connections
##################################################
self.connect((self.blocks_multiply_const_vxx_1, 0), (self.uhd_usrp_sink_0_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.rccBlocks_VNXLabBrick_0, 0))
self.connect((self.analog_const_source_x_1, 0), (self.blocks_throttle_0, 0))
self.connect((self.rccBlocks_rayleighChan_cc_0, 0), (self.blocks_multiply_const_vxx_1, 0))
self.connect((self.analog_const_source_x_0, 0), (self.rccBlocks_rayleighChan_cc_0, 0))
def __init__(self):
gr.top_block.__init__(self, "Static RF or Single Path Rayleigh Faded RF")
Qt.QWidget.__init__(self)
self.setWindowTitle("Static RF or Single Path Rayleigh Faded RF")
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", "pc_fading_vaunix_qtgui")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.usrpRate = usrpRate = 250e3
self.fd = fd = 50
self.fdTs = fdTs = fd*(1.0/usrpRate)
self.fadeMode = fadeMode = False
self.centreFreq = centreFreq = 1e6
self.baseband_multiplier = baseband_multiplier = 0.25
self.atten = atten = 0
##################################################
# Blocks
##################################################
_fadeMode_check_box = Qt.QCheckBox("Fading Enabled")
self._fadeMode_choices = {True: True, False: False}
self._fadeMode_choices_inv = dict((v,k) for k,v in self._fadeMode_choices.iteritems())
self._fadeMode_callback = lambda i: Qt.QMetaObject.invokeMethod(_fadeMode_check_box, "setChecked", Qt.Q_ARG("bool", self._fadeMode_choices_inv[i]))
self._fadeMode_callback(self.fadeMode)
_fadeMode_check_box.stateChanged.connect(lambda i: self.set_fadeMode(self._fadeMode_choices[bool(i)]))
self.top_layout.addWidget(_fadeMode_check_box)
self._atten_layout = Qt.QVBoxLayout()
self._atten_tool_bar = Qt.QToolBar(self)
self._atten_layout.addWidget(self._atten_tool_bar)
self._atten_tool_bar.addWidget(Qt.QLabel("RF Attenuator Setting, dB"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._atten_counter = qwt_counter_pyslot()
self._atten_counter.setRange(0, 63, 2)
self._atten_counter.setNumButtons(2)
self._atten_counter.setValue(self.atten)
self._atten_tool_bar.addWidget(self._atten_counter)
self._atten_counter.valueChanged.connect(self.set_atten)
self._atten_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._atten_slider.setRange(0, 63, 2)
self._atten_slider.setValue(self.atten)
self._atten_slider.setMinimumWidth(200)
self._atten_slider.valueChanged.connect(self.set_atten)
self._atten_layout.addWidget(self._atten_slider)
self.top_layout.addLayout(self._atten_layout)
self.uhd_usrp_sink_0_0_0 = uhd.usrp_sink(
device_addr="",
stream_args=uhd.stream_args(
cpu_format="fc32",
channels=range(1),
),
)
self.uhd_usrp_sink_0_0_0.set_subdev_spec("B:AB", 0)
self.uhd_usrp_sink_0_0_0.set_samp_rate(usrpRate)
self.uhd_usrp_sink_0_0_0.set_center_freq(centreFreq, 0)
self.uhd_usrp_sink_0_0_0.set_gain(0, 0)
self.rccBlocks_rayleighChan_cc_0 = rccBlocks.rayleighChan_cc(randint(-10e3, 0), fdTs, 1.0, False, bool(fadeMode))
self.rccBlocks_VNXLabBrick_0 = rccBlocks.VNXLabBrick(atten)
self._fd_tool_bar = Qt.QToolBar(self)
self._fd_tool_bar.addWidget(Qt.QLabel("Doppler Rate, Hz"+": "))
self._fd_line_edit = Qt.QLineEdit(str(self.fd))
self._fd_tool_bar.addWidget(self._fd_line_edit)
self._fd_line_edit.returnPressed.connect(
lambda: self.set_fd(eng_notation.str_to_num(self._fd_line_edit.text().toAscii())))
self.top_layout.addWidget(self._fd_tool_bar)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, usrpRate,True)
self.blocks_multiply_const_vxx_1 = blocks.multiply_const_vcc((baseband_multiplier, ))
self.analog_const_source_x_1 = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 1)
self.analog_const_source_x_0 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, 1+1j)
##################################################
# Connections
##################################################
self.connect((self.blocks_multiply_const_vxx_1, 0), (self.uhd_usrp_sink_0_0_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.rccBlocks_VNXLabBrick_0, 0))
self.connect((self.analog_const_source_x_0, 0), (self.rccBlocks_rayleighChan_cc_0, 0))
self.connect((self.analog_const_source_x_1, 0), (self.blocks_throttle_0, 0))
self.connect((self.rccBlocks_rayleighChan_cc_0, 0), (self.blocks_multiply_const_vxx_1, 0))
def __init__(self):
gr.top_block.__init__(self, "Top Block")
Qt.QWidget.__init__(self)
self.setWindowTitle("Top Block")
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", "top_block")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.fd = fd = 50
self.chan_rate = chan_rate = 250000
self.fdTs = fdTs = fd*(1.0/chan_rate)
self.fadeMode = fadeMode = False
##################################################
# Blocks
##################################################
_fadeMode_check_box = Qt.QCheckBox("Fading Enabled")
self._fadeMode_choices = {True: True, False: False}
self._fadeMode_choices_inv = dict((v,k) for k,v in self._fadeMode_choices.iteritems())
self._fadeMode_callback = lambda i: Qt.QMetaObject.invokeMethod(_fadeMode_check_box, "setChecked", Qt.Q_ARG("bool", self._fadeMode_choices_inv[i]))
self._fadeMode_callback(self.fadeMode)
_fadeMode_check_box.stateChanged.connect(lambda i: self.set_fadeMode(self._fadeMode_choices[bool(i)]))
self.top_layout.addWidget(_fadeMode_check_box)
self.xmlrpc_server_0 = SimpleXMLRPCServer.SimpleXMLRPCServer(("0.0.0.0", 1234), allow_none=True)
self.xmlrpc_server_0.register_instance(self)
threading.Thread(target=self.xmlrpc_server_0.serve_forever).start()
self.rccBlocks_rayleighChan_cc_0 = rccBlocks.rayleighChan_cc(randint(-10e3, 0), fdTs, 1.0, False, fadeMode)
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
25000, #size
chan_rate, #samp_rate
"QT GUI Plot", #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(-50, 20)
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_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_histogram_sink_x_0 = qtgui.histogram_sink_f(
1500000,
100,
0,
4,
"QT GUI Plot",
1
)
self.qtgui_histogram_sink_x_0.set_update_time(0.10)
self._qtgui_histogram_sink_x_0_win = sip.wrapinstance(self.qtgui_histogram_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_histogram_sink_x_0_win)
self._fd_tool_bar = Qt.QToolBar(self)
self._fd_tool_bar.addWidget(Qt.QLabel("Doppler Rate, Hz"+": "))
self._fd_line_edit = Qt.QLineEdit(str(self.fd))
self._fd_tool_bar.addWidget(self._fd_line_edit)
self._fd_line_edit.returnPressed.connect(
lambda: self.set_fd(eng_notation.str_to_num(self._fd_line_edit.text().toAscii())))
self.top_layout.addWidget(self._fd_tool_bar)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, chan_rate,True)
self.blocks_nlog10_ff_0 = blocks.nlog10_ff(1, 1, 0)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((20, ))
self.blocks_complex_to_mag_0 = blocks.complex_to_mag(1)
self.analog_const_source_x_0 = analog.sig_source_c(0, analog.GR_CONST_WAVE, 0, 0, 1+1j)
##################################################
# Connections
##################################################
self.connect((self.analog_const_source_x_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.rccBlocks_rayleighChan_cc_0, 0))
self.connect((self.rccBlocks_rayleighChan_cc_0, 0), (self.blocks_complex_to_mag_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.blocks_nlog10_ff_0, 0))
self.connect((self.blocks_nlog10_ff_0, 0), (self.blocks_multiply_const_vxx_0, 0))
self.connect((self.blocks_complex_to_mag_0, 0), (self.qtgui_histogram_sink_x_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.qtgui_time_sink_x_0, 0))