Apparatus and method for using adaptive algorithms to exploit sparsity in target weight vectors in an adaptive channel equalizer
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United States of America Patent
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Jun 13, 2006
Grant Date -
May 9, 2002
app pub date -
Sep 10, 2001
filing date -
Sep 11, 2000
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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.
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