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
收藏
页码：283 / 290
页数：8
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