Abstract

An apparatus and method is disclosed for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer. An adaptive algorithm comprises a selected value of a prior and a selected value of a cost function. The present invention comprises algorithms adapted for calculating adaptive equalizer coefficients for sparse transmission channels. The present invention provides sparse algorithms in the form of a Sparse Least Mean Squares (LMS) algorithm and a Sparse Constant Modulus Algorithm (CMA) and a Sparse Decision Directed (DD) algorithm.

Document Type

Patent

Status

Issued

Issue Date

6-13-2006

Patent Number

US 7061977 [ 7,061,977 ] ; US7061977B2

CPC Classification

H 04 L 25/03057

Application number

09/952573

Assignees

Koninklijke Philips Electronics N.V.

Filing Date

9-10-2001

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