1 files changed, 98 insertions, 0 deletions
diff --git a/gr-analog/python/qa_probe_avg_mag_sqrd.py b/gr-analog/python/qa_probe_avg_mag_sqrd.py
new file mode 100755
index 000000000..5c6c97e45
--- /dev/null
+++ b/gr-analog/python/qa_probe_avg_mag_sqrd.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+#
+# Copyright 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 analog_swig as analog
+import math
+
+def avg_mag_sqrd_c(x, alpha):
+    y = [0,]
+    for xi in x:
+        tmp = alpha*(xi.real*xi.real + xi.imag*xi.imag) + (1-alpha)*y[-1]
+        y.append(tmp)
+    return y
+
+def avg_mag_sqrd_f(x, alpha):
+    y = [0,]
+    for xi in x:
+        tmp = alpha*(xi*xi) + (1-alpha)*y[-1]
+        y.append(tmp)
+    return y
+
+class test_probe_avg_mag_sqrd(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_c_001(self):
+        alpha = 0.0001
+        src_data = [1.0+1.0j, 2.0+2.0j, 3.0+3.0j, 4.0+4.0j, 5.0+5.0j,
+                    6.0+6.0j, 7.0+7.0j, 8.0+8.0j, 9.0+9.0j, 10.0+10.0j]
+        expected_result = avg_mag_sqrd_c(src_data, alpha)[-1]
+
+        src = gr.vector_source_c(src_data)
+        op = analog.probe_avg_mag_sqrd_c(0, alpha)
+
+        self.tb.connect(src, op)
+        self.tb.run()
+
+        result_data = op.level()
+        self.assertAlmostEqual(expected_result, result_data, 5)
+
+    def test_cf_002(self):
+        alpha = 0.0001
+        src_data = [1.0+1.0j, 2.0+2.0j, 3.0+3.0j, 4.0+4.0j, 5.0+5.0j,
+                    6.0+6.0j, 7.0+7.0j, 8.0+8.0j, 9.0+9.0j, 10.0+10.0j]
+        expected_result = avg_mag_sqrd_c(src_data, alpha)[0:-1]
+
+        src = gr.vector_source_c(src_data)
+        op = analog.probe_avg_mag_sqrd_cf(0, alpha)
+        dst = gr.vector_sink_f()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        result_data = dst.data()
+        self.assertComplexTuplesAlmostEqual(expected_result, result_data, 5)
+
+    def test_f_003(self):
+        alpha = 0.0001
+        src_data = [1.0, 2.0, 3.0, 4.0, 5.0,
+                    6.0, 7.0, 8.0, 9.0, 10.0]
+        expected_result = avg_mag_sqrd_f(src_data, alpha)[-1]
+
+        src = gr.vector_source_f(src_data)
+        op = analog.probe_avg_mag_sqrd_f(0, alpha)
+
+        self.tb.connect(src, op)
+        self.tb.run()
+
+        result_data = op.level()
+        self.assertAlmostEqual(expected_result, result_data, 5)
+
+if __name__ == '__main__':
+    gr_unittest.run(test_probe_avg_mag_sqrd, "test_probe_avg_mag_sqrd.xml")
+