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[Commit-gnuradio] r4058 - gnuradio/branches/developers/trondeau/digital-
From: |
trondeau |
Subject: |
[Commit-gnuradio] r4058 - gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl |
Date: |
Mon, 11 Dec 2006 10:19:09 -0700 (MST) |
Author: trondeau
Date: 2006-12-11 10:19:09 -0700 (Mon, 11 Dec 2006)
New Revision: 4058
Modified:
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dbpsk.py
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py
Log:
minor modifications
Modified:
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dbpsk.py
===================================================================
---
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dbpsk.py
2006-12-11 17:17:24 UTC (rev 4057)
+++
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dbpsk.py
2006-12-11 17:19:09 UTC (rev 4058)
@@ -19,7 +19,7 @@
# Boston, MA 02110-1301, USA.
#
-# See gnuradio-examples/python/gmsk2 for examples
+# See gnuradio-examples/python/digital for examples
"""
differential BPSK modulation and demodulation.
Modified:
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py
===================================================================
---
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py
2006-12-11 17:17:24 UTC (rev 4057)
+++
gnuradio/branches/developers/trondeau/digital-wip/gnuradio-core/src/python/gnuradio/blksimpl/dqpsk.py
2006-12-11 17:19:09 UTC (rev 4058)
@@ -19,7 +19,7 @@
# Boston, MA 02110-1301, USA.
#
-# See gnuradio-examples/python/gmsk2 for examples
+# See gnuradio-examples/python/digital for examples
"""
differential QPSK modulation and demodulation.
@@ -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
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