PARALLEL MULTI-FREQUENCY NARROWBAND ACTIVE NOISE CONTROL SYSTEMS

被引：5
|
作者：
Yang, F. [1 ]
Gupta, A. [1 ]
Kuo, S. M. [1 ]
机构：
[1] No Illinois Univ, Vibrat & Acoust Ctr, De Kalb, IL 60115 USA
来源：
2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1- 8, PROCEEDINGS | 2009年
关键词：
Active noise control; adaptive notch filters; parallel structures; multi-frequency narrowband;
D O I：
10.1109/ICASSP.2009.4959568
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper analyzes and optimizes narrowband active noise control systems using multiple second-order adaptive filters. Theoretical analysis of the overall parallel structure is based on autocorrelation and cross-correlation matrices. Analytical result shows the use of single error signal to update all adaptive filters with different input signals will introduce extra tonal components in the residual noise. An optimized algorithm that uses bandpass filters to split the fullband error signal into multiple bandlimited subband error signals according to the frequencies of reference signals is developed to improve steady-state performance.
引用
收藏
页码：253 / 256
页数：4
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