Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23961
Title: Robust active control of broadband noise in finite ducts
Authors: Liu, S
Yuan, J 
Fung, KY
Issue Date: 2002
Publisher: Acoustical Society of America
Source: Journal of the Acoustical Society of America, 2002, v. 111, no. 6, p. 2727-2734 How to cite?
Journal: Journal of the Acoustical Society of America 
Abstract: This study focuses on robust active control of broadband noise in finite ducts. Our analytical and experimental studies suggest the existence of several technical flaws in the path models of conventional active noise control (ANC) systems. These are sensitivity of the path model with respect to boundary conditions, and nonminimum phase (NMP) secondary and reference paths. For finite ducts with small cross sections, the traveling wave model (TWM) may be adopted to find an effective solution to these problems and lead to a robust ANC system. Since many practical noisy ducts are finite with small cross sections, the proposed ANC has many practical applications. Its robustness and ability to suppress broadband noise will be explained theoretically and verified experimentally.
URI: http://hdl.handle.net/10397/23961
ISSN: 0001-4966
EISSN: 1520-8524
DOI: 10.1121/1.1476683
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