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

页码：1100 / 1102

页数：3

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