From f1c41f807cb29472d0924149e39d6ec8ad90e6a2 Mon Sep 17 00:00:00 2001
From: eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Wed, 27 Sep 2006 05:14:03 +0000
Subject: Merged changes from eb/digital-wip into trunk.
This includes:
* renaming gnuradio-examples/python/gmsk2 to gnuradio-examples/python/digital
* refactoring the digital data tx and rx test code into benchmark_tx
and benchmark_rx. These accept a -m <modulation> argument.
<modulation> can currently be selected from gmsk, dbpsk, dqpsk
* Two new AGC blocks: gr_agc2: separate attack and delay rates;
gr_feedforward_agc: FIR-ish compressor. Normalizes to peak envelope.
* Working DBPSK mod/demod (works fine)
* Working DQPSK mod/demod (works, but still needs more work)
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3662 221aa14e-8319-0410-a670-987f0aec2ac5
---
gnuradio-examples/python/digital/gen_whitener.py | 40 ++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100755 gnuradio-examples/python/digital/gen_whitener.py
(limited to 'gnuradio-examples/python/digital/gen_whitener.py')
diff --git a/gnuradio-examples/python/digital/gen_whitener.py b/gnuradio-examples/python/digital/gen_whitener.py
new file mode 100755
index 0000000000..93aea2b821
--- /dev/null
+++ b/gnuradio-examples/python/digital/gen_whitener.py
@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+
+from gnuradio import gr, gru
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import sys
+
+class my_graph(gr.flow_graph):
+
+ def __init__(self):
+ gr.flow_graph.__init__(self)
+
+ parser = OptionParser(option_class=eng_option)
+ (options, args) = parser.parse_args ()
+ if len(args) != 0:
+ parser.print_help()
+ raise SystemExit, 1
+
+ src = gr.lfsr_32k_source_s()
+ head = gr.head(gr.sizeof_short, 2048)
+ self.dst = gr.vector_sink_s()
+ self.connect(src, head, self.dst)
+
+if __name__ == '__main__':
+ try:
+ fg = my_graph()
+ fg.run()
+ f = sys.stdout
+ i = 0
+ for s in fg.dst.data():
+ f.write("%3d, " % (s & 0xff,))
+ f.write("%3d, " % ((s >> 8) & 0xff,))
+ i = i+2
+ if i % 16 == 0:
+ f.write('\n')
+
+ except KeyboardInterrupt:
+ pass
+
+
--
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