On the equivalence of RLS implementations of LCMV and GSC processors

被引：30

作者：

Werner, S ^{[1
]}

Apolinario, JA

de Campos, MLR

机构：

[1] Helsinki Univ Technol, Signal Proc Lab, FIN-02015 Espoo, Finland

[2] Inst Militar Engn, Dept Engn Elet, BR-22290270 Rio De Janeiro, Brazil

[3] Univ Fed Rio de Janeiro, COPPE, BR-21945970 Rio De Janeiro, Brazil

[4] Oulu Univ, Ctr Wireless Commun, FIN-90014 Oulu, Finland

来源：

IEEE SIGNAL PROCESSING LETTERS | 2003年 / 10卷 / 12期

关键词：

beamforming; generalized sidelobe canceler (GSC); linearly constrained adaptive filtering; linearly constrained minimum variance (LCMV);

D O I：

10.1109/LSP.2003.818861

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：

This letter compares the transients of the constrained recursive least squares (CRLS) algorithm with the generalized sidelobe canceler (GSC) employing the recursive least squares (RLS) algorithm. We prove that the two adaptive implementations are equivalent everywhere regardless of the blocking matrix chosen. This guarantees that algorithm tuning is not affected by the blocking matrix. This result differs from the more restrictive case for transient equivalence of the constrained least mean-square (CLMS) algorithm and the GSC employing the least mean square (LMS), algorithm, for in this case the blocking matrix needs to be unitary.

引用

页码：356 / 359

页数：4

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