summaryrefslogtreecommitdiff
path: root/gnuradio-examples/python/usrp/test_dft_synth.py
diff options
context:
space:
mode:
authorJosh Blum2011-10-08 11:56:36 -0700
committerJosh Blum2011-10-08 11:56:36 -0700
commitfcc0ce92dd20cc231fc79dab3d47fbb3d5487f98 (patch)
treece4b50e483291039949a86e3f25f42b586a0b1a2 /gnuradio-examples/python/usrp/test_dft_synth.py
parent7a2d39f425f6bc5df6a4f7206d3fa10f8e1e67c3 (diff)
parent3b1a26e6e610aed2aa8dee3bb747184f51447cf6 (diff)
downloadgnuradio-fcc0ce92dd20cc231fc79dab3d47fbb3d5487f98.tar.gz
gnuradio-fcc0ce92dd20cc231fc79dab3d47fbb3d5487f98.tar.bz2
gnuradio-fcc0ce92dd20cc231fc79dab3d47fbb3d5487f98.zip
Merge branch 'next' of http://gnuradio.org/git/gnuradio into digital
Diffstat (limited to 'gnuradio-examples/python/usrp/test_dft_synth.py')
-rwxr-xr-xgnuradio-examples/python/usrp/test_dft_synth.py78
1 files changed, 0 insertions, 78 deletions
diff --git a/gnuradio-examples/python/usrp/test_dft_synth.py b/gnuradio-examples/python/usrp/test_dft_synth.py
deleted file mode 100755
index 99b1c4923..000000000
--- a/gnuradio-examples/python/usrp/test_dft_synth.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#!/usr/bin/env python
-
-from gnuradio import gr, gru, blks2
-from gnuradio.wxgui import stdgui2, fftsink2
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-import wx
-import random
-
-
-def make_random_complex_tuple(L, gain=1):
- result = []
- for x in range(L):
- result.append(gain * complex(random.gauss(0, 1),random.gauss(0, 1)))
-
- return tuple(result)
-
-def random_noise_c(gain=1):
- src = gr.vector_source_c(make_random_complex_tuple(32*1024, gain), True)
- return src
-
-
-class test_graph (stdgui2.std_top_block):
- def __init__(self, frame, panel, vbox, argv):
- stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv)
-
- parser = OptionParser (option_class=eng_option)
- (options, args) = parser.parse_args ()
-
- sample_rate = 16e6
- mpoints = 16
- ampl = 1000
-
- enable = mpoints/2 * [1, 0]
- enable[0] = 1
-
- taps = gr.firdes.low_pass(1, # gain
- 1, # rate
- 1.0/mpoints * 0.4, # cutoff
- 1.0/mpoints * 0.1, # trans width
- gr.firdes.WIN_HANN)
-
- synth = blks2.synthesis_filterbank(mpoints, taps)
-
- null_source = gr.null_source(gr.sizeof_gr_complex)
-
- if 1:
- for i in range(mpoints):
- s = gr.sig_source_c(sample_rate/mpoints, gr.GR_SIN_WAVE,
- 300e3, ampl * enable[i], 0)
- self.connect(s, (synth, i))
-
- else:
- for i in range(mpoints):
- if i == 1:
- #s = gr.sig_source_c(sample_rate/mpoints, gr.GR_SIN_WAVE,
- # 300e3, ampl * enable[i], 0)
- s = random_noise_c(ampl)
- self.connect(s, (synth, i))
- else:
- self.connect(null_source, (synth, i))
-
-
- # We add these throttle blocks so that this demo doesn't
- # suck down all the CPU available. Normally you wouldn't use these.
- thr = gr.throttle(gr.sizeof_gr_complex, sample_rate)
- fft = fftsink2.fft_sink_c(frame, fft_size=1024,sample_rate=sample_rate)
- vbox.Add(fft.win, 1, wx.EXPAND)
-
- self.connect(synth, thr, fft)
-
-
-def main ():
- app = stdgui2.stdapp (test_graph, "Test DFT filterbank")
- app.MainLoop ()
-
-if __name__ == '__main__':
- main ()