DocumentCode :
1370939
Title :
Effect of errors in the plant model on the performance of algorithms for adaptive feedforward control
Author :
Boucher, C.C. ; Elliott, S.J. ; Nelson, P.A.
Author_Institution :
Inst. of Sound & Vibration Res., Southampton Univ., UK
Volume :
138
Issue :
4
fYear :
1991
fDate :
8/1/1991 12:00:00 AM
Firstpage :
313
Lastpage :
319
Abstract :
The paper presents an investigation into the effects of errors in the assumed plant model on the performance of both single and multichannel adaptive algorithms for the active control of sound and vibration. In the single-channel case the effects of phase errors on the maximum update coefficient and convergence time of the filtered-x LMS algorithm are considered. This involves both analytic results and computer simulations. For the multichannel case a statistical analysis is presented examining the effects of a Gaussian distribution of errors in the assumed plant response on the convergence of the multichannel LMS algorithm. The work includes experimental results from a 32 microphone, 16 loudspeaker active noise control system
Keywords :
adaptive control; control systems; error statistics; least squares approximations; loudspeakers; noise abatement; Gaussian distribution; active noise control system; adaptive feedforward control; computer simulations; convergence time; experimental results; filtered-x LMS algorithm; loudspeaker; maximum update coefficient; microphone; multichannel LMS algorithm; multichannel adaptive algorithms; phase errors; plant model; single channel adaptive algorithms; sound control; statistical analysis; vibration control;
fLanguage :
English
Journal_Title :
Radar and Signal Processing, IEE Proceedings F
Publisher :
iet
ISSN :
0956-375X
Type :
jour
Filename :
86000
Link To Document :
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