Synchronous adaptive filters with delayed coefficient adaption

Author

Darlington, P. ; Elliott, S.J.

Author_Institution

Wyoming Univ., Laramie, WY, USA

fYear

1988

fDate

11-14 Apr 1988

Firstpage

2586

Abstract

The authors present exact descriptions of the behaviour of a class of adaptive filters with delayed coefficient adaption. This coefficient update delay is demonstrated to occur as a natural consequence of introducing compensation for nonminimum phase systems under the control of a least mean square based adaptive filter, as in the adaptive control of acoustic noise. A linear, time-invariant equivalent transfer function model of the adaptive system is developed, which can be used to study steady-state performance and the stability limits imposed by the coefficient update delay

Keywords

delays; digital filters; filtering and prediction theory; noise abatement; synchronisation; LMS adaptive filter; acoustic noise; adaptive control; adaptive system; coefficient update delay; compensation; delayed coefficient adaption; linear model; nonminimum phase systems; stability limits; steady-state performance; synchronous adaptive filters; time-invariant equivalent transfer function; Acoustic noise; Adaptive control; Adaptive filters; Algorithm design and analysis; Control system synthesis; Control systems; Delay effects; Least squares approximation; Programmable control; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.197175

Filename

197175