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[[Category:Block Docs]]
 
[[Category:Block Docs]]
'''(DEPRECATED in 3.9 - Will be removed in a future release) - replaced by [[Linear_Equalizer]] and [[Adaptive_Algorithm]]'''
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[[Category:Stub Docs]]
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This is the template for the [[:Category:Block_Docs|"Page-per-block Docs"]].  This first section should describe what the block does and how to use it, using however many paragraphs necessary.  Note that the title of the wiki page should match the block's name in GRC, i.e. the one defined in the block's .grc file.  Look at the [[FFT]] Block for a good example.
  
Implements constant modulus adaptive filter on complex stream.
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As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
 
 
The error value and tap update equations (for p=2) can be found in:
 
        D. Godard, "Self-Recovering Equalization and Carrier Tracking in Two-Dimensional Data Communication Systems", IEEE Transactions on Communications, Vol. 28, No. 11, pp. 1867 - 1875, 1980.
 
  
 
== Parameters ==
 
== Parameters ==
 
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
 
(''R''): <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
  
; Num. taps : Number of taps in the equalizer (channel size)
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; Param 1 (''R'')
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: Description of parameter, provide any tips or recommended values. Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).
  
; Modulus (''R''): Modulus of the modulated signals
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; Param 2
 
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: blah blah blah
; Gain (''R''): Gain of the update loop
 
 
 
; Samples per symbol : Number of samples per symbol of the input signal
 
  
 
== Example Flowgraph ==
 
== Example Flowgraph ==
  
This flowgraph is taken from the [[Guided_Tutorial_PSK_Demodulation]] tutorial.
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Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI.  Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
 
 
[[File:stage4_grc.png|600px|]]
 
 
 
[[File:stage4.png|600px|]]
 
  
 
== Source Files ==
 
== Source Files ==
  
 
; C++ files
 
; C++ files
: [https://github.com/gnuradio/gnuradio/blob/master/gr-digital/lib/cma_equalizer_cc_impl.cc 1]
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: [https://github.com/gnuradio/gnuradio TODO]
  
 
; Header files
 
; Header files
: [https://github.com/gnuradio/gnuradio/blob/master/gr-digital/lib/cma_equalizer_cc_impl.h 2]
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: [https://github.com/gnuradio/gnuradio TODO]
  
 
; Public header files
 
; Public header files
: [https://github.com/gnuradio/gnuradio/blob/master/gr-digital/include/gnuradio/digital/cma_equalizer_cc.h 3]
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: [https://github.com/gnuradio/gnuradio TODO]
  
 
; Block definition
 
; Block definition
: [https://github.com/gnuradio/gnuradio/blob/master/gr-digital/grc/digital_cma_equalizer_cc.block.yml 4]
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: [https://github.com/gnuradio/gnuradio TODO]

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