A new variable step-size NLMS algorithm designed for applications with exponential decay impulse responses

被引：20

作者：

Li, Ning ^{[1
]}

Zhang, Yonggang ^{[1
,2
]}

Hao, Yanling ^{[1
]}

Chambers, Jonathon A. ^{[2
]}

机构：

[1] Harbin Engn Univ, Coll Automat, Harbin 150001, Peoples R China

[2] Univ Loughborough, Dept Elect & Elect Engn, Loughborough LE11 3TU, Leics, England

来源：

SIGNAL PROCESSING | 2008年 / 88卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

adaptive filter; variable step-size LMS; exponential decay;

D O I：

10.1016/j.sigpro.2008.03.002

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：

A new variable step-size normalized least mean square algorithm (VSSNLMS) is proposed which is designed for applications where the unknown filter has an exponential decay impulse response. in the proposed algorithm a variable vector step size is used on the basis of maximizing the decrease of the mean square deviation (MSD) between the optimal and adaptive filter weight vectors at each iteration. Faster convergence rate of the resulting algorithm as compared with existing VSSNLMS algorithms is supported by simulations. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：2346 / 2349

页数：4

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