On perfect acoustic noise cancelling controllers

Author

Pota, Hemanshu R. ; Kelkar, Atul G.

Author_Institution

Sch. of Electr. Eng., New South Wales Univ., Kensington, NSW, Australia

Volume

5

fYear

2000

fDate

2000

Firstpage

3018

Abstract

This paper presents an analysis of perfect noise cancelling controllers for acoustic ducts. The analysis is applicable to many acoustic noise control applications such as active noise suppression in air-conditioning ducts. Implementation issues for an `ideal´ noise cancelling controller are discussed. Practical difficulties posed in otherwise ideally suited infinite-dimensional controllers are outlined. A mathematical analysis is given to demonstrate that the control system designed based on the perfect cancellation technique is highly sensitive to imperfections in any practical implementation of the theoretical infinite-dimensional controllers

Keywords

active noise control; multidimensional systems; sensitivity analysis; stability; transfer functions; acoustic ducts; acoustic noise cancelling controllers; acoustic noise control; active noise suppression; infinite-dimensional controllers; sensitivity analysis; stability; transfer functions; Acoustic noise; Active noise reduction; Adaptive control; Control systems; Ducts; Feedback; Loudspeakers; Microphones; Noise cancellation; Programmable control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2000. Proceedings of the 2000

Conference_Location

Chicago, IL

ISSN

0743-1619

Print_ISBN

0-7803-5519-9

Type

conf

DOI

10.1109/ACC.2000.879119

Filename

879119