FGFS-4.1/gr-air-modes
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Use correct filter rate for RTL resampler.

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This commit is contained in:
Nick Foster 2012-06-13 19:45:20 -07:00
parent 00d006a3ab
commit 91d6c991f0
1 changed files with 4 additions and 1 deletions
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5
apps/uhd_modes.py
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@ -89,6 +89,9 @@ class adsb_rx_block (gr.top_block):
print "Failed to set initial frequency" print "Failed to set initial frequency"
self.u.set_gain_mode(0) #manual gain mode self.u.set_gain_mode(0) #manual gain mode
if options.gain is None:
options.gain = 49
self.u.set_gain(options.gain) self.u.set_gain(options.gain)
print "Gain is %i" % self.u.get_gain() print "Gain is %i" % self.u.get_gain()
@ -117,7 +120,7 @@ class adsb_rx_block (gr.top_block):
self.slicer = air_modes.modes_slicer(rate, queue) self.slicer = air_modes.modes_slicer(rate, queue)
if use_resampler: if use_resampler:
self.lpfiltcoeffs = gr.firdes.low_pass(1, 5*rate, 1.2e6, 300e3) self.lpfiltcoeffs = gr.firdes.low_pass(1, 5*2.4e6, 1.2e6, 300e3)
self.resample = blks2.rational_resampler_ccf(interpolation=5, decimation=3, taps=self.lpfiltcoeffs) self.resample = blks2.rational_resampler_ccf(interpolation=5, decimation=3, taps=self.lpfiltcoeffs)
self.connect(self.u, self.resample, self.demod) self.connect(self.u, self.resample, self.demod)
else: else: