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Theoretical framework for stochastic modeling of FxLMS-based active noise control dynamics

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2 Author(s)
Ardekani, I.T. ; Univ. of Auckland, Auckland, New Zealand ; Abdulla, W.H.

There have been several contributions on theoretical modeling of FxLMS-based active noise control systems; however, when it is intended to derive elegant closed-form expressions for formulating dynamical behaviors of these systems, a number of simplifying assumptions regarding the acoustic noise, the actual secondary path and its model have to be used. This paper develops a dynamic model for FxLMS-based ANC systems, considering a general stochastic acoustic noise and a general secondary path. Also, an arbitrary secondary path model, which is not necessarily a perfect model, is considered. The main distinction of this model is that previously-derived dynamic models can be resulted in from it as special cases.

Published in:

Signal & Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012 Asia-Pacific

Date of Conference:

3-6 Dec. 2012