ON MAXIMUM ACHIEVABLE NOISE REDUCTION IN ANC SYSTEMS

被引：6

作者：

Milani, Ali A. ^{[1
]}

Kannan, Govind ^{[1
]}

Panahi, Issa M. S. ^{[1
]}

机构：

[1] Univ Texas Dallas, Dept Elect Engn, Richardson, TX 75080 USA

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2010年

关键词：

Active noise control; causal Wiener filter;

D O I：

10.1109/ICASSP.2010.5495853

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Active noise control (ANC) is primarily a signal estimation problem. The nature of noise to be canceled, the acoustic paths, and the transfer functions of microphones/loudspeakers place fundamental limits on the performance of ANC systems. In this paper we analyze the performance of ANC systems from the maximum achievable noise attenuation level (NAL(max)) prospective for different ANC system structures i.e feed-forward, feedback and hybrid. We first derive NALmax for stochastic noise and then generalize the result to accommodate tonal (sinusoidal) noises. These results are invaluable in choosing an ANC design scheme.

引用

页码：349 / 352

页数：4

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