diff options
Diffstat (limited to 'gr-digital/python/qa_glfsr_source.py')
-rwxr-xr-x | gr-digital/python/qa_glfsr_source.py | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/gr-digital/python/qa_glfsr_source.py b/gr-digital/python/qa_glfsr_source.py deleted file mode 100755 index 157520d7f..000000000 --- a/gr-digital/python/qa_glfsr_source.py +++ /dev/null @@ -1,95 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2007,2010,2012 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -from gnuradio import gr, gr_unittest -import digital_swig as digital - -class test_glfsr_source(gr_unittest.TestCase): - - def setUp (self): - self.tb = gr.top_block () - - def tearDown (self): - self.tb = None - - def test_000_make_b(self): - src = digital.glfsr_source_b(16) - self.assertEquals(src.mask(), 0x8016) - self.assertEquals(src.period(), 2**16-1) - - def test_001_degree_b(self): - self.assertRaises(RuntimeError, - lambda: gr.glfsr_source_b(0)) - self.assertRaises(RuntimeError, - lambda: gr.glfsr_source_b(33)) - - def test_002_correlation_b(self): - for degree in range(1,11): # Higher degrees take too long to correlate - src = digital.glfsr_source_b(degree, False) - b2f = digital.chunks_to_symbols_bf((-1.0,1.0), 1) - dst = gr.vector_sink_f() - del self.tb # Discard existing top block - self.tb = gr.top_block() - self.tb.connect(src, b2f, dst) - self.tb.run() - self.tb.disconnect_all() - actual_result = dst.data() - R = auto_correlate(actual_result) - self.assertEqual(R[0], float(len(R))) # Auto-correlation peak at origin - for i in range(len(R)-1): - self.assertEqual(R[i+1], -1.0) # Auto-correlation minimum everywhere else - - def test_003_make_f(self): - src = digital.glfsr_source_f(16) - self.assertEquals(src.mask(), 0x8016) - self.assertEquals(src.period(), 2**16-1) - - def test_004_degree_f(self): - self.assertRaises(RuntimeError, - lambda: gr.glfsr_source_f(0)) - self.assertRaises(RuntimeError, - lambda: gr.glfsr_source_f(33)) - def test_005_correlation_f(self): - for degree in range(1,11): # Higher degrees take too long to correlate - src = digital.glfsr_source_f(degree, False) - dst = gr.vector_sink_f() - del self.tb # Discard existing top block - self.tb = gr.top_block() - self.tb.connect(src, dst) - self.tb.run() - - actual_result = dst.data() - R = auto_correlate(actual_result) - self.assertEqual(R[0], float(len(R))) # Auto-correlation peak at origin - for i in range(len(R)-1): - self.assertEqual(R[i+1], -1.0) # Auto-correlation minimum everywhere else - -def auto_correlate(data): - l = len(data) - R = [0,]*l - for lag in range(l): - for i in range(l): - R[lag] += data[i]*data[i-lag] - return R - -if __name__ == '__main__': - gr_unittest.run(test_glfsr_source, "test_glfsr_source.xml") |