2004•2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601)Requires access

Feedforward estimation for active noise cancellation in the presence of acoustic coupling

Jie Zeng, Raymond A. de Callafon

Abstract

This paper presents a new methodology for feedforward filter design in active noise cancellation in the presence of acoustic coupling. This is done via a feedforward filter estimation that uses a dual-Youla parametrization to incorporate the acoustic coupling. The experimental results show that the feedforward filter parametrized and estimated via dual-Youla parametrization provides an effective feedforward compensation for the active noise control in an airduct.

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Key concepts: Feed forward, Active noise control, Noise (video), Parametrization (atmospheric modeling), Control theory (sociology), Computer science, Coupling (piping), Filter (signal processing)