CMA Equalizer

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(DEPRECATED in 3.9 - Will be removed in a future release) - replaced by Linear_Equalizer and Adaptive_Algorithm

Implements constant modulus adaptive filter on complex stream.

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[edit]

(R): Run-time adjustable

Num. taps
Number of taps in the equalizer (channel size)
Modulus (R)
Modulus of the modulated signals
Gain (R)
Gain of the update loop
Samples per symbol
Number of samples per symbol of the input signal

Example Flowgraph[edit]

This flowgraph is taken from the Guided_Tutorial_PSK_Demodulation tutorial.

Stage4 grc.png

Stage4.png

Source Files[edit]

C++ files
1
Header files
2
Public header files
3
Block definition
4