summaryrefslogtreecommitdiff
path: root/gr-digital/grc/digital_costas_loop_cc.xml
diff options
context:
space:
mode:
authorTom Rondeau2011-03-29 00:48:49 -0400
committerTom Rondeau2011-03-29 00:48:49 -0400
commitb30c79326c3eedf5ebf20be62306f0511b98a0e7 (patch)
treeb99ee11afbbc2010c6aa459d62bbe27836c28207 /gr-digital/grc/digital_costas_loop_cc.xml
parentaa7098456732b705e8de1d939fe9ce96243816d9 (diff)
downloadgnuradio-b30c79326c3eedf5ebf20be62306f0511b98a0e7.tar.gz
gnuradio-b30c79326c3eedf5ebf20be62306f0511b98a0e7.tar.bz2
gnuradio-b30c79326c3eedf5ebf20be62306f0511b98a0e7.zip
gr-digital: restructured Costas loop to be specified in terms of the damping factor and natural frequency instead of randomly setting the gains. Much more robust in simulation.
Diffstat (limited to 'gr-digital/grc/digital_costas_loop_cc.xml')
-rw-r--r--gr-digital/grc/digital_costas_loop_cc.xml30
1 files changed, 11 insertions, 19 deletions
diff --git a/gr-digital/grc/digital_costas_loop_cc.xml b/gr-digital/grc/digital_costas_loop_cc.xml
index a2e4a6e11..087535b87 100644
--- a/gr-digital/grc/digital_costas_loop_cc.xml
+++ b/gr-digital/grc/digital_costas_loop_cc.xml
@@ -8,27 +8,17 @@
<name>Costas Loop</name>
<key>digital_costas_loop_cc</key>
<import>from gnuradio import digital</import>
- <make>digital.costas_loop_cc($alpha, $beta, $max_freq, $min_freq, $order)</make>
- <callback>set_alpha($alpha)</callback>
- <callback>set_beta($beta)</callback>
+ <make>digital.costas_loop_cc($eta, $w, $order)</make>
+ <callback>set_damping_factor($eta)</callback>
+ <callback>set_natural_freq($w)</callback>
<param>
- <name>Alpha</name>
- <key>alpha</key>
+ <name>Damping Factor</name>
+ <key>eta</key>
<type>real</type>
</param>
<param>
- <name>Beta</name>
- <key>beta</key>
- <type>real</type>
- </param>
- <param>
- <name>Max Freq</name>
- <key>max_freq</key>
- <type>real</type>
- </param>
- <param>
- <name>Min Freq</name>
- <key>min_freq</key>
+ <name>Natural Frequency</name>
+ <key>w</key>
<type>real</type>
</param>
<param>
@@ -44,9 +34,11 @@
<name>out</name>
<type>complex</type>
</source>
+
+ <!-- Optional Outputs -->
<source>
- <name>out</name>
- <type>complex</type>
+ <name>frequency</name>
+ <type>float</type>
<optional>1</optional>
</source>
</block>