Adaptive Algorithm

Creates an Adaptive Algorithm object to be used in Linear_Equalizer or Decision_Feedback_Equalizer to define how the error signal is calculated and how taps are updated, depending on the specified algorithm

Parameters

(R): Run-time adjustable

Algorithm Type

enum to specify which adaptive algorithm will be used; LMS, NLMS, CMA are the valid choices

Digital Constellation Object

A Constellation_Object which specifies the modulation used to adapt using decision directed mode of the equalizer

Step Size

Specifies how quickly the adaptive algorithm will converge. Too high and the equalizer becomes unstable. The optimal value is dependent on the statistical properties of the input signal

Modulus

(CMA only) Specifies the number of constellation points, e.g. for QPSK modulus = 4

Example Flowgraph

See Linear_Equalizer for a flowgraph utilizing the Adaptive Algorithm Object