summaryrefslogtreecommitdiff
path: root/gr-digital/python/digital/qa_lms_equalizer.py
diff options
context:
space:
mode:
authorBen Reynwar <ben@reynwar.net>2013-03-07 23:11:20 -0700
committerBen Reynwar <ben@reynwar.net>2013-03-07 23:11:20 -0700
commita7c7cf1186ec73786e6bbefb430c940c8747f857 (patch)
treeb2f39e170547202ed772d95260563a73288b3326 /gr-digital/python/digital/qa_lms_equalizer.py
parentb841288cfb261da28746c4b3aaa7a1dfc078ebfd (diff)
digital: Enabling uninstalled python imports.
Diffstat (limited to 'gr-digital/python/digital/qa_lms_equalizer.py')
-rwxr-xr-xgr-digital/python/digital/qa_lms_equalizer.py55
1 files changed, 55 insertions, 0 deletions
diff --git a/gr-digital/python/digital/qa_lms_equalizer.py b/gr-digital/python/digital/qa_lms_equalizer.py
new file mode 100755
index 0000000000..9ba90a89ab
--- /dev/null
+++ b/gr-digital/python/digital/qa_lms_equalizer.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+#
+# Copyright 2006,2007,2010,2011 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_lms_dd_equalizer(gr_unittest.TestCase):
+
+ def setUp(self):
+ self.tb = gr.top_block()
+
+ def tearDown(self):
+ self.tb = None
+
+ def transform(self, src_data, gain, const):
+ SRC = gr.vector_source_c(src_data, False)
+ EQU = digital.lms_dd_equalizer_cc(4, gain, 1, const.base())
+ DST = gr.vector_sink_c()
+ self.tb.connect(SRC, EQU, DST)
+ self.tb.run()
+ return DST.data()
+
+ def test_001_identity(self):
+ # Constant modulus signal so no adjustments
+ const = digital.constellation_qpsk()
+ src_data = const.points()*1000
+
+ N = 100 # settling time
+ expected_data = src_data[N:]
+ result = self.transform(src_data, 0.1, const)[N:]
+
+ N = -500
+ self.assertComplexTuplesAlmostEqual(expected_data[N:], result[N:], 5)
+
+if __name__ == "__main__":
+ gr_unittest.run(test_lms_dd_equalizer, "test_lms_dd_equalizer.xml")