Frequency domain interpretation of LMS convergence of a fractionally spaced equalizer

被引：1

作者：

Reznic, Z ^{[1
]}

Johnson, CR ^{[1
]}

deVictoria, FL ^{[1
]}

机构：

[1] CORNELL UNIV,SCH ELECT ENGN DEPT,ITHACA,NY 14853

来源：

IEEE SIGNAL PROCESSING LETTERS | 1996年 / 3卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/97.508166

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 letter, we extend recent results regarding the behavior of a symbol-spaced tapped-delay-line LMS-adapted equalizer in frequency domain terms to a fractionally spaced implementation, These results rely on an eigendecomposition of the autocorrelation matrix of the received signal. In fractionally spaced equalization systems, the output of the analog channel is oversampled, resulting in a cyclostationary signal, We derive its autocorrelation matrix, A symbol-spaced representation of the combined channel, equalizer, and downsampling device is formed in the frequency domain, and the convergence rate of the time-domain LMS algorithm is described in the frequency domain.

引用

页码：206 / 208

页数：3

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