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TECHNICAL PAPERS

Adaptive Sinusoidal Disturbance Rejection in Linear Discrete-Time Systems—Part II: Experiments

[+] Author and Article Information
Foued Ben Amara

Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor, MI 48109

Pierre T. Kabamba

Department of Aerospace Engineering, The University of Michigan, Ann Arbor, MI 48109

A. Galip Ulsoy

Department of Mechanical Engineering and Applied Sciences, The University of Michigan, Ann Arbor, MI 48109

J. Dyn. Sys., Meas., Control 121(4), 655-659 (Dec 01, 1999) (5 pages) doi:10.1115/1.2802531 History: Received March 14, 1997; Online December 03, 2007

Abstract

The problem of adaptive noise cancellation in an acoustic duct is discussed. An adaptive controller design approach based on parametrizing the set of stabilizing controllers using the Youla parametrization and tuning the Youla parameter to achieve regulation was presented in a companion paper [3]. Three controller adaptation algorithms are implemented to solve the noise cancellation problem in an acoustic duct. The experimental results indicate a mixed performance for each of the adaptation algorithms, with good performances observed only in some frequency ranges. The discrepancy between the expected and the observed performances is attributed to unmodeled nonlinearities in the speakers.

Copyright © 1999 by The American Society of Mechanical Engineers
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