[Commit-gnuradio] r4011 - gnuradio/trunk/gnuradio-core/src/python/gnuradio/blksimpl

[trondeau]

Author: trondeau
Date: 2006-11-21 11:18:24 -0700 (Tue, 21 Nov 2006)
New Revision: 4011

Modified:
   gnuradio/trunk/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py
Log:
fixed typo in beta value for qpsk demod

Modified: gnuradio/trunk/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py
===================================================================
--- gnuradio/trunk/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py  
2006-11-21 17:31:05 UTC (rev 4010)
+++ gnuradio/trunk/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py  
2006-11-21 18:18:24 UTC (rev 4011)
@@ -245,7 +245,7 @@
         costas_order = 4        
         # The value of beta is now set to be underdamped; this value can have 
a huge impact on the
         # performance of QPSK. Set to 0.25 for critically damped or higher for 
underdamped responses.
-        beta = .5 0 * self._costas_alpha * self._costas_alpha
+        beta = .35 * self._costas_alpha * self._costas_alpha
         self.costas_loop = gr.costas_loop_cc(self._costas_alpha, beta, 0.02, 
-0.02, costas_order)
 
         # RRC data filter