Active noise control in a forced-air cooling system

被引：9

作者：

de Callafon, R. A. ^{[1
]}

Zeng, J. ^{[1
]}

Kinney, C. E. ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA

来源：

CONTROL ENGINEERING PRACTICE | 2010年 / 18卷 / 09期

关键词：

Active noise control; Feedforward control; Parameter estimation; Digital filters; Control applications;

D O I：

10.1016/j.conengprac.2010.05.007

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper discusses the design methodology for the active noise control of sound disturbances in a forced-air cooling system. The active sound cancellation algorithm uses the framework of output-error based optimization of a linearly parametrized filter for feedforward sound compensation to select microphone location and demonstrate the effectiveness of active noise cancellation in a small portable data projector. Successful implementation of the feedforward based active noise controller on a NEC LT170 data projector shows a 20-40 dB reduction per frequency point in the spectrum of external noise of the forced-air cooling system can be obtained over a broad frequency range from 1 to 5 kHz. A total noise reduction (unweighted) of 9.3 dB is achieved. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1045 / 1052

页数：8

共 22 条

[1]

[Anonymous], 1999, SYSTEM IDENTIFICATIO

[2] Comparison of active noise control structures in the presence of acoustical feedback by using the H-infinity synthesis technique [J].

Bai, MR ;

Lin, HH .

JOURNAL OF SOUND AND VIBRATION, 1997, 206 (04) :453-471

[3]

Berkman EF, 1997, SOUND VIB, V31, P80

[4]

Bernhard R. J., 2000, Canadian Acoustics, V28, P8

[5] A principal component algorithm for feedforward active noise and vibration control [J].

Cabell, RH ;

Fuller, CR .

JOURNAL OF SOUND AND VIBRATION, 1999, 227 (01) :159-181

[6] Experimental evaluation of leaky least-mean-square algorithms for active noise reduction in communication headsets [J].

Cartes, DA ;

Ray, LR ;

Collier, RD .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2002, 111 (04) :1758-1771

[7]

Denenberg J. N., 1992, IEEE Potentials, V11, P36, DOI 10.1109/45.127730

[8] Hybrid active noise control of a one-dimensional acoustic duct [J].

Esmailzadeh, E ;

Alasty, A ;

Ohadi, AR .

JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME, 2002, 124 (01) :10-18

[9] ACTIVE CONTROL OF SOUND AND VIBRATION [J].

FULLER, CR ;

VONFLOTOW, AH .

IEEE CONTROL SYSTEMS MAGAZINE, 1995, 15 (06) :9-19

[10] A compact active control implementation for axial cooling fan noise [J].

Gee, KL ;

Sommerfeldt, SD .

NOISE CONTROL ENGINEERING JOURNAL, 2003, 51 (06) :325-334

← 1 2 3 →