Active control of environmental noise, VII: Performance of multi-frequency, multi-channel, freefield sound cancelling systems

被引：2

作者：

Wright, SE ^{[1
]}

Atmoko, H ^{[1
]}

机构：

[1] Univ Huddersfield, Sch Engn, Huddersfield HD1 3DH, W Yorkshire, England

来源：

JOURNAL OF SOUND AND VIBRATION | 2002年 / 258卷 / 02期

关键词：

D O I：

10.1006/jsvi.2001.4214

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The paper considers the performance of multi-frequency, multi-channel, freefield sound cancelling systems for the reduction of discrete frequency and periodic noise. The approach uses a method of directional active noise control. Large sound reductions from these systems have been made possible through: (a) synthetically generating the cancelling sound and synchronizing with the primary source; (b) automatic alignment of all stability regions of the control system; and (c) avoiding instability produced by these multi-channel systems. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：203 / 232

页数：30

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