Merged eb/gcell -r8215:8243 into trunk. This adds gr-gcell, the GNU

Radio interface to the Cell Broadband Engine.


git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8244 221aa14e-8319-0410-a670-987f0aec2ac5

2 files changed, 159 insertions, 0 deletions

diff --git a/gnuradio-core/src/python/gnuradio/gr/Makefile.am b/gnuradio-core/src/python/gnuradio/gr/Makefile.am
index 4f952d127..3d98bcd40 100644
--- a/gnuradio-core/src/python/gnuradio/gr/Makefile.am
+++ b/gnuradio-core/src/python/gnuradio/gr/Makefile.am
@@ -58,6 +58,7 @@ noinst_PYTHON = 			\
 	qa_diff_phasor_cc.py		\
 	qa_ecc_ccsds_27.py		\
 	qa_feval.py			\
+	qa_fft.py			\
 	qa_fft_filter.py		\
 	qa_filter_delay_fc.py		\
 	qa_fractional_interpolator.py   \
diff --git a/gnuradio-core/src/python/gnuradio/gr/qa_fft.py b/gnuradio-core/src/python/gnuradio/gr/qa_fft.py
new file mode 100755
index 000000000..412c4c48b
--- /dev/null
+++ b/gnuradio-core/src/python/gnuradio/gr/qa_fft.py
@@ -0,0 +1,158 @@
+#!/usr/bin/env python
+#
+# Copyright 2008 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 this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+from gnuradio import gr, gr_unittest
+import sys
+import random
+
+primes = (2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,
+          59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,
+          137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,
+          227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311)
+
+
+class test_fft_filter(gr_unittest.TestCase):
+
+    def setUp(self):
+	pass
+
+    def tearDown(self):
+	pass
+
+    def assert_fft_ok2(self, expected_result, result_data):
+        expected_result = expected_result[:len(result_data)]
+        self.assertComplexTuplesAlmostEqual2 (expected_result, result_data,
+                                              abs_eps=1e-9, rel_eps=4e-4)
+
+    def assert_fft_float_ok2(self, expected_result, result_data, abs_eps=1e-9, rel_eps=4e-4):
+        expected_result = expected_result[:len(result_data)]
+        self.assertFloatTuplesAlmostEqual2 (expected_result, result_data,
+                                            abs_eps, rel_eps)
+
+    def test_001(self):
+	tb = gr.top_block()
+        fft_size = 32
+        src_data = tuple([complex(primes[2*i], primes[2*i+1]) for i in range(fft_size)])
+
+        expected_result = ((4377+4516j),
+                           (-1706.1268310546875+1638.4256591796875j),
+                           (-915.2083740234375+660.69427490234375j),
+                           (-660.370361328125+381.59600830078125j),
+                           (-499.96044921875+238.41630554199219j),
+                           (-462.26748657226562+152.88948059082031j),
+                           (-377.98440551757812+77.5928955078125j),
+                           (-346.85821533203125+47.152004241943359j),
+                           (-295+20j),
+                           (-286.33609008789062-22.257017135620117j),
+                           (-271.52999877929688-33.081821441650391j),
+                           (-224.6358642578125-67.019538879394531j),
+                           (-244.24473571777344-91.524826049804688j),
+                           (-203.09068298339844-108.54627227783203j),
+                           (-198.45195007324219-115.90768432617188j),
+                           (-182.97744750976562-128.12318420410156j),
+                           (-167-180j),
+                           (-130.33688354492188-173.83778381347656j),
+                           (-141.19784545898438-190.28807067871094j),
+                           (-111.09677124023438-214.48896789550781j),
+                           (-70.039543151855469-242.41630554199219j),
+                           (-68.960540771484375-228.30015563964844j),
+                           (-53.049201965332031-291.47097778320312j),
+                           (-28.695289611816406-317.64553833007812j),
+                           (57-300j),
+                           (45.301143646240234-335.69509887695312j),
+                           (91.936195373535156-373.32437133789062j),
+                           (172.09465026855469-439.275146484375j),
+                           (242.24473571777344-504.47515869140625j),
+                           (387.81732177734375-666.6788330078125j),
+                           (689.48553466796875-918.2142333984375j),
+                           (1646.539306640625-1694.1956787109375j))
+
+        src = gr.vector_source_c(src_data)
+        s2v = gr.stream_to_vector(gr.sizeof_gr_complex, fft_size)
+        fft = gr.fft_vcc(fft_size, True, [], False)
+        v2s = gr.vector_to_stream(gr.sizeof_gr_complex, fft_size)
+        dst = gr.vector_sink_c()
+        tb.connect(src, s2v, fft, v2s, dst)
+        tb.run()
+        result_data = dst.data()
+        #print 'expected:', expected_result
+        #print 'results: ', result_data
+        #self.assertComplexTuplesAlmostEqual (expected_result, result_data, 5)
+        self.assert_fft_ok2(expected_result, result_data)
+
+    def test_002(self):
+	tb = gr.top_block()
+        fft_size = 32
+
+        tmp_data = ((4377+4516j),
+                    (-1706.1268310546875+1638.4256591796875j),
+                    (-915.2083740234375+660.69427490234375j),
+                    (-660.370361328125+381.59600830078125j),
+                    (-499.96044921875+238.41630554199219j),
+                    (-462.26748657226562+152.88948059082031j),
+                    (-377.98440551757812+77.5928955078125j),
+                    (-346.85821533203125+47.152004241943359j),
+                    (-295+20j),
+                    (-286.33609008789062-22.257017135620117j),
+                    (-271.52999877929688-33.081821441650391j),
+                    (-224.6358642578125-67.019538879394531j),
+                    (-244.24473571777344-91.524826049804688j),
+                    (-203.09068298339844-108.54627227783203j),
+                    (-198.45195007324219-115.90768432617188j),
+                    (-182.97744750976562-128.12318420410156j),
+                    (-167-180j),
+                    (-130.33688354492188-173.83778381347656j),
+                    (-141.19784545898438-190.28807067871094j),
+                    (-111.09677124023438-214.48896789550781j),
+                    (-70.039543151855469-242.41630554199219j),
+                    (-68.960540771484375-228.30015563964844j),
+                    (-53.049201965332031-291.47097778320312j),
+                    (-28.695289611816406-317.64553833007812j),
+                    (57-300j),
+                    (45.301143646240234-335.69509887695312j),
+                    (91.936195373535156-373.32437133789062j),
+                    (172.09465026855469-439.275146484375j),
+                    (242.24473571777344-504.47515869140625j),
+                    (387.81732177734375-666.6788330078125j),
+                    (689.48553466796875-918.2142333984375j),
+                    (1646.539306640625-1694.1956787109375j))
+
+        src_data = tuple([x/fft_size for x in tmp_data])
+
+        expected_result = tuple([complex(primes[2*i], primes[2*i+1]) for i in range(fft_size)])
+
+        src = gr.vector_source_c(src_data)
+        s2v = gr.stream_to_vector(gr.sizeof_gr_complex, fft_size)
+        fft = gr.fft_vcc(fft_size, False, [], False)
+        v2s = gr.vector_to_stream(gr.sizeof_gr_complex, fft_size)
+        dst = gr.vector_sink_c()
+        tb.connect(src, s2v, fft, v2s, dst)
+        tb.run()
+        result_data = dst.data()
+        #print 'expected:', expected_result
+        #print 'results: ', result_data
+        #self.assertComplexTuplesAlmostEqual (expected_result, result_data, 5)
+        self.assert_fft_ok2(expected_result, result_data)
+
+
+if __name__ == '__main__':
+    gr_unittest.main ()
+