Fully adaptive generalized recursive control system for active acoustic attenuation

Author

Eriksson, L.J. ; Allie, M.C. ; Melton, D.E. ; Popovich, S.R. ; Laak, T.A.

Author_Institution

DIGISONIX Inc., Middleton, WI, USA

Volume

ii

fYear

1994

fDate

19-22 Apr 1994

Abstract

Active acoustic attenuation uses a secondary source to control an undesired disturbance from a primary source of sound or vibration. In this paper, a generalized recursive control system is presented that can be used to implement a variety of fully adaptive feedforward and feedback control schemes. Three recursive adaptive filters simultaneously provide improved modeling of the feedforward path, the feedback path, and the secondary path to enable application of the filtered-X or filtered-U algorithms. These schemes have been applied to a variety of sound and vibration control problems

Keywords

acoustic noise; active noise control; feedback; feedforward; filtering theory; noise abatement; recursive filters; active acoustic attenuation; adaptive feedback control; adaptive feedforward control; adaptive generalized recursive control system; feedback path; feedforward path modelling; filtered-U algorithms; filtered-X algorithms; primary source; recursive adaptive filters; secondary path; secondary source; sound control; vibration control; Acoustic sensors; Adaptive control; Adaptive filters; Attenuation; Control systems; Error correction; Feedback; IIR filters; Programmable control; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.389672

Filename

389672