A study of active noise cancellation in ducts

被引：8
|
作者：
Wang, CN
Tse, CC
Wen, CW
机构：
[1] Dept. of Nav. Arch. and Ocean Eng., National Taiwan University, Taipei
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 1997年 / 11卷 / 06期
关键词：
D O I：
10.1006/mssp.1997.0111
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An infinite impulse response (IIR) filter based on RLMS algorithm is used to control the sound propagated in a duct. The offline error path modification is also included in the algorithm in order to obtain a better result. Three different types of noise source, i.e. pure tone, dual sine and narrowband-limited noise, are considered. This controller not only has a strong effect on the noise reduction for pure tone and dual sine sound sources, but also reduces the narrowband-limited noise markedly. Further study on the reduction of the broad noise source is required however. (C) 1997 Academic Press Limited.
引用
收藏
页码：779 / 790
页数：12
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