Minimum-phase FIR filters for delay-constrained noise reduction

被引：15
|
作者：
Vainio, O [1 ]
机构：
[1] Tampere Univ Technol, Signal Proc Lab, FIN-33101 Tampere, Finland
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1999年 / 48卷 / 06期
关键词：
delay effects; finite impulse response (FIR) digital filters; white noise;
D O I：
10.1109/19.816120
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 flexible method of reducing white noise in measurement signals by means of real-time digital filtering is presented. Compared to the widely used averaging filter, the new approach significantly reduces the delay of the step response of a filter, measured typically at the 50% level of the full step. The optimum filter coefficients are obtained analytically as a function of a single weighting parameter.
引用
收藏
页码：1100 / 1102
页数：3
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