Identification of Frequency of Biased Harmonic Signal

被引：58

作者：

Aranovskiy, Stanislav ^{[1
]}

Bobtsov, Alexey ^{[1
]}

Kremlev, Artem ^{[1
]}

Nikolaev, Nikolay ^{[1
]}

Slita, Olga ^{[2
]}

机构：

[1] St Petersburg State Univ Informat Technol Mech &, Dept Control Syst & Informat, St Petersburg 197101, Russia

[2] Balt State Tech Univ, Dept Mechatron & Robot, St Petersburg 190008, Russia

来源：

EUROPEAN JOURNAL OF CONTROL | 2010年 / 16卷 / 02期

关键词：

Identification; Harmonic signal; Robustness; Estimation; Disturbance; ADAPTIVE NOTCH FILTER; PERIODIC SIGNAL; ESTIMATOR; ROBUSTNESS;

D O I：

10.3166/EJC.16.129-139

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We consider a problem of identification of unknown frequency of a biased sinusoidal signal y(t) = sigma(0) + a sin(omega t + phi) + delta(t) with bounded disturbance or harmonic noise delta(t). A new proposed approach to estimation of frequency of biased sinusoidal signal is robust with regard to unaccounted disturbances, which are present in measurement of effective signal. Unlike known analogs, this approach allows to regulate time of estimation of unknown frequency omega. The proposed approach also allows online amplitude and bias estimation. The proposed identification algorithm has smaller dimension than other known analogs.

引用

页码：129 / 139

页数：11

共 26 条

[1]

Bobtsov A., 2002, 15 IFAC WORLD C AUT

[2] New approach to the problem of globally convergent frequency estimator [J].