A simplified adaptive feedback active noise control system

Wu, L; Qiu, X; Guo, Y

A simplified adaptive feedback active noise control system

Wu, L Qiu, X

Guo, Y

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Publication Type:: Journal Article
Citation:: Applied Acoustics, 2014, 81 pp. 40 - 46
Issue Date:: 2014-07-01

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Field	Value	Language
dc.contributor.author	Wu, L	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Guo, Y	en_US
dc.date.issued	2014-07-01	en_US
dc.identifier.citation	Applied Acoustics, 2014, 81 pp. 40 - 46	en_US
dc.identifier.issn	0003-682X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118209
dc.description.abstract	In the adaptive feedback active noise control system based on the internal model control (IMC) structure, the reference signal is regenerated by synthesizing the error signal and the secondary signal filtered with the estimation of the secondary path, hence more computation load and extra programming are required. Motivated by the engineering truth that the primary noise cannot be completely cancelled in most practical active noise control applications and the error signal still contains some portions of the primary noise, a simplified adaptive feedback active noise control system is proposed in this paper, which adopts the error signal directly as the reference signal in an adaptive feedforward control system and utilizes the leaky filtered-x LMS algorithm to update the controller. The convergence properties of the proposed system are investigated and its advantages are discussed by comparing with other feedback control systems as well as the weakness. Finally, simulations and experiments are carried out to demonstrate the effectiveness of the proposed system. © 2014 Elsevier Ltd. All rights reserved.	en_US
dc.relation.ispartof	Applied Acoustics	en_US
dc.relation.isbasedon	10.1016/j.apacoust.2014.02.006	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Acoustics	en_US
dc.title	A simplified adaptive feedback active noise control system	en_US
dc.type	Journal Article
utslib.citation.volume	81	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0203 Classical Physics	en_US
utslib.for	1201 Architecture	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	81	en_US

Abstract:

In the adaptive feedback active noise control system based on the internal model control (IMC) structure, the reference signal is regenerated by synthesizing the error signal and the secondary signal filtered with the estimation of the secondary path, hence more computation load and extra programming are required. Motivated by the engineering truth that the primary noise cannot be completely cancelled in most practical active noise control applications and the error signal still contains some portions of the primary noise, a simplified adaptive feedback active noise control system is proposed in this paper, which adopts the error signal directly as the reference signal in an adaptive feedforward control system and utilizes the leaky filtered-x LMS algorithm to update the controller. The convergence properties of the proposed system are investigated and its advantages are discussed by comparing with other feedback control systems as well as the weakness. Finally, simulations and experiments are carried out to demonstrate the effectiveness of the proposed system. © 2014 Elsevier Ltd. All rights reserved.

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http://hdl.handle.net/10453/118209