Blind paraunitary equalization

被引：3

作者：

Icart, Sylvie ^{[1
]}

Comon, Pierre ^{[1
]}

Rota, Ludwig ^{[2
]}

机构：

[1] Univ Nice, CNRS, UMR 6070, Lab 13S, F-06903 Sophia Antipolis, France

[2] Orange Business Serv, Sophia Antipolis, France

来源：

SIGNAL PROCESSING | 2009年 / 89卷 / 03期

关键词：

Blind deconvolution; Blind equalization; Multiple-input/multiple-output (MIMO); High order statistics (HOS); Paraunitary filter; Pairwise cumulants; HIGHER-ORDER STATISTICS; DECONVOLUTION; SEPARATION; IDENTIFICATION; CONTRASTS; SYSTEMS; FACTORIZATION; CRITERIA; SIGNALS; NOISE;

D O I：

10.1016/j.sigpro.2008.08.014

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper a blind multiple-input/multiple-output (MIMO) space-time equalizer is described, dedicated to convolutive mixtures when observations have been pre-whitened, Filters preserving space-time whiteness are paraunitary; a parameterization of such filters with plane rotations is proposed. Theoretical developments then lead to a numerical algorithm that sweeps all pairs of delayed outputs. This algorithm involves the solution of a polynomial system in two unknowns, whose coefficients depend on the output cumulants. Simulations and performance of the numerical algorithm are reported. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：283 / 290

页数：8

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