1 files changed, 121 insertions, 0 deletions
diff --git a/gr-digital/python/qa_mpsk_receiver.py b/gr-digital/python/qa_mpsk_receiver.py
new file mode 100755
index 000000000..e1f16ee67
--- /dev/null
+++ b/gr-digital/python/qa_mpsk_receiver.py
@@ -0,0 +1,121 @@
+#!/usr/bin/env python
+#
+# Copyright 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
+import random, cmath
+
+class test_mpsk_receiver(gr_unittest.TestCase):
+
+    def setUp (self):
+        self.tb = gr.top_block ()
+
+    def tearDown (self):
+        self.tb = None
+
+    def test01 (self):
+        # Test BPSK sync
+        M = 2
+        theta = 0
+        loop_bw = cmath.pi/100.0
+        fmin = -0.5
+        fmax = 0.5
+        mu = 0.25
+        gain_mu = 0.01
+        omega = 2
+        gain_omega = 0.001
+        omega_rel = 0.001
+
+        self.test = digital_swig.mpsk_receiver_cc(M, theta, loop_bw,
+                                                  fmin, fmax, mu, gain_mu,
+                                                  omega, gain_omega,
+                                                  omega_rel)
+        
+        data = 1000*[complex(1,0), complex(1,0), complex(-1,0), complex(-1,0)]
+        self.src = gr.vector_source_c(data, False)
+        self.snk = gr.vector_sink_c()
+
+        self.tb.connect(self.src, self.test, self.snk)
+        self.tb.run()
+        
+        expected_result = 1000*[complex(-0.5,0), complex(0.5,0)]
+        dst_data = self.snk.data()
+
+        # Only compare last Ncmp samples
+        Ncmp = 100
+        len_e = len(expected_result)
+        len_d = len(dst_data)
+        expected_result = expected_result[len_e - Ncmp:]
+        dst_data = dst_data[len_d - Ncmp:]
+
+        #for e,d in zip(expected_result, dst_data):
+        #    print e, d
+        
+        self.assertComplexTuplesAlmostEqual (expected_result, dst_data, 1)
+
+
+    def test02 (self):
+        # Test QPSK sync
+        M = 4
+        theta = 0
+        loop_bw = 2*cmath.pi/100.0
+        fmin = -0.5
+        fmax = 0.5
+        mu = 0.25
+        gain_mu = 0.01
+        omega = 2
+        gain_omega = 0.001
+        omega_rel = 0.001
+
+        self.test = digital_swig.mpsk_receiver_cc(M, theta, loop_bw,
+                                                  fmin, fmax, mu, gain_mu,
+                                                  omega, gain_omega,
+                                                  omega_rel)
+
+        data = 1000*[complex( 0.707,  0.707), complex( 0.707,  0.707),
+                     complex(-0.707,  0.707), complex(-0.707,  0.707),
+                     complex(-0.707, -0.707), complex(-0.707, -0.707),
+                     complex( 0.707, -0.707), complex( 0.707, -0.707)]
+        self.src = gr.vector_source_c(data, False)
+        self.snk = gr.vector_sink_c()
+
+        self.tb.connect(self.src, self.test, self.snk)
+        self.tb.run()
+        
+        expected_result = 1000*[complex(0, -1.0), complex(1.0, 0),
+                                complex(0, 1.0), complex(-1.0, 0)]
+        dst_data = self.snk.data()
+
+        # Only compare last Ncmp samples
+        Ncmp = 100
+        len_e = len(expected_result)
+        len_d = len(dst_data)
+        expected_result = expected_result[len_e - Ncmp:]
+        dst_data = dst_data[len_d - Ncmp:]
+
+        #for e,d in zip(expected_result, dst_data):
+        #    print e, d
+
+        self.assertComplexTuplesAlmostEqual (expected_result, dst_data, 1)
+
+if __name__ == '__main__':
+    gr_unittest.run(test_mpsk_receiver, "test_mpsk_receiver.xml")