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Type: Journal article
Title: A study of time-domain FXLMS algorithms with control output constraint
Author: Qiu, X.
Hansen, C.
Citation: Journal of the Acoustical Society of America, 2001; 109(6):2815-2823
Publisher: Amer Inst Physics
Issue Date: 2001
ISSN: 0001-4966
Statement of
Xiaojun Qiu and Colin H. Hansen
Abstract: A single input, single output active noise control system using the time-domain Filtered-X LMS algorithm with output constraint is investigated. The constraint on the output of the control filter is applied by three different methods: the leakage algorithm based on the transformation method using a penalty function; the re-scaling algorithm based on the active set method; and the simple practical (clipping) algorithm which just clips the output if a constraint is encountered. A comparison of the three algorithms shows that the re-scaling algorithm can usually work successfully under the constraint, while the leakage algorithm usually needs a large leakage coefficient to satisfy the constraint with a resulting performance loss. The clipping algorithm has potential problems both with the stability and convergence speed.
Description: © 2001 Acoustical Society of America.
RMID: 0020010248
DOI: 10.1121/1.1367247
Appears in Collections:Mechanical Engineering publications
Environment Institute publications

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