diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2011-08-27 16:32:29 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2011-08-27 16:32:29 -0400 |
| commit | 56500df87ed591e645d57bbaa67a8e49942de909 (patch) | |
| tree | ed3a0a4096e9498a6d68810d7b8598bdbebe5bbe | |
| parent | 35fd5072f4a1eba6d02e3c4615dfde33783f876f (diff) | |
digital: updating constellation receiver's QA code.
| -rwxr-xr-x | gr-digital/python/qa_constellation_receiver.py | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/gr-digital/python/qa_constellation_receiver.py b/gr-digital/python/qa_constellation_receiver.py index 79dded8ba3..25107e4a74 100755 --- a/gr-digital/python/qa_constellation_receiver.py +++ b/gr-digital/python/qa_constellation_receiver.py @@ -29,6 +29,7 @@ from generic_mod_demod import generic_mod, generic_demod from qa_constellation import tested_constellations, twod_constell +import math # Set a seed so that if errors turn up they are reproducible. # 1234 fails @@ -47,11 +48,8 @@ FREQUENCY_OFFSET = 0.01 TIMING_OFFSET = 1.0 # RECEIVER PARAMETERS -# Increased from normal default of 0.01 to speed things up. -FREQ_ALPHA = 0.02 -# Decreased from normal default of 0.1 is required for the constellations -# with smaller point separations. -PHASE_ALPHA = 0.02 +FREQ_BW = 2*math.pi/100.0 +PHASE_BW = 2*math.pi/100.0 class test_constellation_receiver (gr_unittest.TestCase): @@ -127,8 +125,8 @@ class rec_test_tb (gr.top_block): channel = gr.channel_model(NOISE_VOLTAGE, FREQUENCY_OFFSET, TIMING_OFFSET) # Receiver Blocks demod = generic_demod(constellation, differential=differential, - freq_alpha=FREQ_ALPHA, - phase_alpha=PHASE_ALPHA) + freq_bw=FREQ_BW, + phase_bw=PHASE_BW) self.dst = gr.vector_sink_b() self.connect(src, packer, mod, channel, demod, self.dst) |