Convex combination of adaptive filters for a variable tap-length LMS algorithm

被引：56

作者：

Zhang, Yonggang ^{[1
]}

Chambers, Jonathon A. ^{[1
]}

机构：

[1] Cardiff Univ, Cardiff Sch Engn, Ctr Digital Signal Proc, Cardiff CF24 3AA, S Glam, Wales

来源：

IEEE SIGNAL PROCESSING LETTERS | 2006年 / 13卷 / 10期

关键词：

adaptive filters; convex combination filters; variable tap-length least-mean-square (LMS) algorithm;

D O I：

10.1109/LSP.2006.879457

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 convex combination of adaptive filters is utilized to improve the performance of a variable tap-length least-mean-square (LMS) algorithm in a low signal-to-noise environment (SNR <= 0 dB). As shown by our simulations, the adaptation of the tap-length in the variable tap-length LMS algorithm is highly affected by the parameter choice and the noise level. Combination approaches can improve such adaptation by exploiting advantages of parallel adaptive filters with different parameters. Simulation results support the good properties of the proposed method.

引用

页码：628 / 631

页数：4

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