##################################################
# Gnuradio Python Flow Graph
# Title: USRP FLEX Pager Receiver (Single Channel)
-# Generated: Thu Oct 29 08:04:51 2009
+# Generated: Thu Oct 29 11:03:16 2009
##################################################
from gnuradio import blks2
from gnuradio import eng_notation
from gnuradio import gr
+from gnuradio import pager
from gnuradio import window
from gnuradio.eng_option import eng_option
from gnuradio.gr import firdes
self.rx_gain = rx_gain = saved_rx_gain
self.offset = offset = saved_offset
self.nchan_taps = nchan_taps = len(channel_taps)
- self.ma_ntaps = ma_ntaps = channel_rate/symbol_rate
+ self.ma_ntaps = ma_ntaps = int(channel_rate/symbol_rate)
self.freq_text = freq_text = freq
self.demod_k = demod_k = 3*channel_rate/(2*math.pi*deviation)
self.channel_decim = channel_decim = int(sample_rate/channel_rate)
+ self.bb_interp = bb_interp = 5
+ self.bb_decim = bb_decim = 8
+ self.baseband_rate = baseband_rate = 16000
##################################################
# Notebooks
##################################################
# Blocks
##################################################
- self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_fff(
- interpolation=5,
- decimation=8,
- taps=([1.0/8.0,]*40),
- fractional_bw=None,
- )
self.fm_demod = gr.quadrature_demod_cf(demod_k)
self.gr_freq_xlating_fir_filter_xxx_0 = gr.freq_xlating_fir_filter_ccc(channel_decim, (channel_taps), band_freq-freq+offset, sample_rate)
+ self.gr_null_sink_0 = gr.null_sink(gr.sizeof_int*1)
+ self.gr_null_sink_0_0 = gr.null_sink(gr.sizeof_int*1)
+ self.gr_null_sink_0_1 = gr.null_sink(gr.sizeof_int*1)
+ self.gr_null_sink_0_2 = gr.null_sink(gr.sizeof_int*1)
+ self.pager_flex_deinterleave_0 = pager.flex_deinterleave()
+ self.pager_flex_deinterleave_0_0 = pager.flex_deinterleave()
+ self.pager_flex_deinterleave_0_1 = pager.flex_deinterleave()
+ self.pager_flex_deinterleave_0_1_0 = pager.flex_deinterleave()
+ self.pager_flex_sync_0 = pager.flex_sync()
+ self.pager_slicer_fb_0 = pager.slicer_fb(1e-6)
+ self.resampler = blks2.rational_resampler_fff(
+ interpolation=bb_interp,
+ decimation=bb_decim,
+ taps=([1.0/ma_ntaps,]*ma_ntaps*bb_interp),
+ fractional_bw=None,
+ )
self.usrp_source = grc_usrp.simple_source_c(which=0, side="A", rx_ant="RXA")
self.usrp_source.set_decim_rate(decim)
self.usrp_source.set_frequency(band_freq, verbose=True)
peak_hold=False,
)
self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_1.win, 1, 0, 1, 1)
- self.wxgui_scopesink2_0 = scopesink2.scope_sink_c(
- self.displays.GetPage(1).GetWin(),
- title="Channel Waveform",
- sample_rate=channel_rate,
- v_scale=8e3,
- v_offset=0,
- t_scale=20.0/channel_rate,
- ac_couple=False,
- xy_mode=False,
- num_inputs=1,
- )
- self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0.win, 0, 0, 1, 1)
self.wxgui_scopesink2_0_0 = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
title="Baseband",
xy_mode=False,
num_inputs=1,
)
- self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0.win, 1, 0, 1, 1)
+ self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0.win, 0, 0, 1, 1)
##################################################
# Connections
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_1, 0))
self.connect((self.usrp_source, 0), (self.gr_freq_xlating_fir_filter_xxx_0, 0))
self.connect((self.usrp_source, 0), (self.wxgui_fftsink2_0, 0))
- self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_scopesink2_0, 0))
self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.fm_demod, 0))
- self.connect((self.blks2_rational_resampler_xxx_0, 0), (self.wxgui_scopesink2_0_0, 0))
- self.connect((self.fm_demod, 0), (self.blks2_rational_resampler_xxx_0, 0))
+ self.connect((self.resampler, 0), (self.wxgui_scopesink2_0_0, 0))
+ self.connect((self.fm_demod, 0), (self.resampler, 0))
+ self.connect((self.pager_slicer_fb_0, 0), (self.pager_flex_sync_0, 0))
+ self.connect((self.resampler, 0), (self.pager_slicer_fb_0, 0))
+ self.connect((self.pager_flex_sync_0, 1), (self.pager_flex_deinterleave_0_1_0, 0))
+ self.connect((self.pager_flex_sync_0, 2), (self.pager_flex_deinterleave_0_1, 0))
+ self.connect((self.pager_flex_sync_0, 0), (self.pager_flex_deinterleave_0, 0))
+ self.connect((self.pager_flex_sync_0, 3), (self.pager_flex_deinterleave_0_0, 0))
+ self.connect((self.pager_flex_deinterleave_0, 0), (self.gr_null_sink_0, 0))
+ self.connect((self.pager_flex_deinterleave_0_1_0, 0), (self.gr_null_sink_0_0, 0))
+ self.connect((self.pager_flex_deinterleave_0_1, 0), (self.gr_null_sink_0_1, 0))
+ self.connect((self.pager_flex_deinterleave_0_0, 0), (self.gr_null_sink_0_2, 0))
def set_config_filename(self, config_filename):
self.config_filename = config_filename
def set_symbol_rate(self, symbol_rate):
self.symbol_rate = symbol_rate
self.set_passband(2*(self.deviation+self.symbol_rate))
- self.set_ma_ntaps(self.channel_rate/self.symbol_rate)
+ self.set_ma_ntaps(int(self.channel_rate/self.symbol_rate))
def set_saved_channel(self, saved_channel):
self.saved_channel = saved_channel
def set_channel_rate(self, channel_rate):
self.channel_rate = channel_rate
- self.wxgui_scopesink2_0.set_sample_rate(self.channel_rate)
self.wxgui_fftsink2_1.set_sample_rate(self.channel_rate)
self.set_channel_decim(int(self.sample_rate/self.channel_rate))
self.set_demod_k(3*self.channel_rate/(2*math.pi*self.deviation))
self.set_channel_taps(firdes.low_pass(10, self.sample_rate, self.passband/2.0, (self.channel_rate-self.passband)/2.0))
- self.set_ma_ntaps(self.channel_rate/self.symbol_rate)
+ self.set_ma_ntaps(int(self.channel_rate/self.symbol_rate))
def set_channel(self, channel):
self.channel = channel
def set_channel_decim(self, channel_decim):
self.channel_decim = channel_decim
+ def set_bb_interp(self, bb_interp):
+ self.bb_interp = bb_interp
+
+ def set_bb_decim(self, bb_decim):
+ self.bb_decim = bb_decim
+
+ def set_baseband_rate(self, baseband_rate):
+ self.baseband_rate = baseband_rate
+
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
projects / debian / gnuradio / blobdiff