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
收藏
页码：165 / 171
页数：7
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