ESTIMATION OF NONSTATIONARY HARMONIC SIGNALS AND ITS APPLICATION TO ACTIVE CONTROL OF MRI NOISE

被引：0

作者：

Niedzwiecki, Maciej ^{[1
]}

Meller, Michal ^{[1
]}

Kajikawa, Yoshinobu ^{[2
]}

Lukwinski, Dawid ^{[1
]}

机构：

[1] Gdansk Univ Technol, Dept Automat Control, Fac Elect Telecommun & Comp Sci, Narutowicza 11-12, PL-80233 Gdansk, Poland

[2] Kansai Univ, Fac Engn Sci, Dept Elect & Elect Engn, Suita, Osaka 5648680, Japan

来源：

2013 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP) | 2013年

关键词：

Adaptive comb filtering; active noise cancelling; INTERNAL-MODEL PRINCIPLE; VIBRATION CONTROL; UNKNOWN FREQUENCY; ALGORITHMS; REJECTION; SYSTEMS; FILTER;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A new adaptive comb filtering algorithm, capable of tracking the fundamental frequency and amplitudes of different frequency components of a nonstationary harmonic signal embedded in white measurement noise, is proposed. Frequency tracking characteristics of the new scheme are studied analytically, proving (under Gaussian assumptions and optimal tuning) its statistical efficiency for quasi-linear frequency changes. Laboratory tests show that the proposed algorithm can be successfully used for active control of MRI noise.

引用

页码：5661 / 5665

页数：5

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