COMPARATIVE PERFORMANCE OF A FILTER AND A FIXED-LAG SMOOTHER

被引：0

作者：

ANDERSON, AJ

机构：

[1] Department of Electrical Engineering, University of Paisley, Paisley

来源：

SIGNAL PROCESSING | 1992年 / 29卷 / 02期

关键词：

DIGITAL FILTERING; FIXED-LAG SMOOTHER;

D O I：

10.1016/0165-1684(92)90018-R

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 formula is derived for calculating the percentage reduction that can be obtained in the output noise variance of a fixed lag smoothing filter as compared to direct digital filtering. Results are presented for a number of second order systems for different model pole positions. The conclusions are that for highly oscillatory signals corrupted with wideband noise the addition of smoothing can give a substantial reduction in the output noise variance.

引用

页码：165 / 171

页数：7

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