Estimation of n frequencies using adaptive notch filter

被引：47

作者：

Mojiri, M. ^{[1
]}

Bakhshai, A. R.

机构：

[1] Kashan Univ, Fac Engn, Esfahan 87317 51167, Iran

[2] Queens Univ, Dept Elect & Comp Engn, Kingston, ON K7L 3N6, Canada

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2007年 / 54卷 / 04期

关键词：

adaptive notch filter (ANF); frequency estimation; nonlinear systems; parallel structure; stability analysis;

D O I：

10.1109/TCSII.2006.889724

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：

This paper introduces an adaptive structure composed of n coupled paralleled subfilters that directly estimates frequencies of multiple sinusoids. The order of differential equations governing this algorithm is 3n, where n is the number of sinusoids. Stability analysis of this algorithm is carried out based on the application of the averaging theory under the assumption of the slow adaptation. Simulation results verify the validity of the analytical issues.

引用

页码：338 / 342

页数：5

共 20 条

[1] Adaptive algorithms for the rejection of sinusoidal disturbances with unknown frequency [J].