Title :
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
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;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.879119
