Configuring fixed-coefficient active control systems for traffic noise reduction

Zhao, S; Qiu, X; Lacey, J; Maisch, S

Configuring fixed-coefficient active control systems for traffic noise reduction

Zhao, S

Qiu, X

Lacey, J Maisch, S

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Publication Type:: Journal Article
Citation:: Building and Environment, 2019, 149 pp. 415 - 427
Issue Date:: 2019-02-01

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Field	Value	Language
dc.contributor.author	Zhao, S https://orcid.org/0000-0002-6261-8864	en_US
dc.contributor.author	Qiu, X https://orcid.org/0000-0002-5181-1220	en_US
dc.contributor.author	Lacey, J	en_US
dc.contributor.author	Maisch, S	en_US
dc.date.available	2021-02-01T18:06:17Z
dc.date.issued	2019-02-01	en_US
dc.identifier.citation	Building and Environment, 2019, 149 pp. 415 - 427	en_US
dc.identifier.issn	0360-1323	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129895
dc.description.abstract	© 2018 Elsevier Ltd Practical implementation of active noise control (ANC) systems for outdoor traffic noise reduction remains rare. One challenge is the difficulty of configuring an ANC controller due to moving noise sources, which are typically located far from ANC systems. In this paper, a pseudo noise source method is proposed for configuring fixed-coefficient feedforward ANC systems for traffic noise control. First, a minimum of one pseudo noise source is placed near an ANC system to determine the control coefficients in the tuning stage. Second, the ANC systems are run to reduce the noise from far-field traffic noise sources using the optimal control coefficients in the cancelling stage. The feasibility and limitations of the proposed method are investigated by illustrating the effect of the pseudo noise source position on the noise reduction performance of the ANC system. The simulation results show that the performance of the ANC system increases with distance when the pseudo noise sources move farther from the system but approaches a constant when the pseudo noise sources are in the far field. The indoor experimental results are consistent with the simulation results. The outdoor experimental results of a six-channel coupled system show a noise reduction of 3 dB below 500 Hz at the position of a dummy head.	en_US
dc.relation	http://purl.org/au-research/grants/arc/ARC LP140100987
dc.relation.ispartof	Building and Environment	en_US
dc.relation.isbasedon	10.1016/j.buildenv.2018.12.037	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Building & Construction	en_US
dc.title	Configuring fixed-coefficient active control systems for traffic noise reduction	en_US
dc.type	Journal Article
utslib.citation.volume	149	en_US
utslib.for	091301 Acoustics and Noise Control (excl. Architectural Acoustics)	en_US
utslib.for	120104 Architectural Science and Technology (incl. Acoustics, Lighting, Structure and Ecologically Sustainable Design)	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	1201 Architecture	en_US
utslib.for	1202 Building	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	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	149	en_US

Abstract:

© 2018 Elsevier Ltd Practical implementation of active noise control (ANC) systems for outdoor traffic noise reduction remains rare. One challenge is the difficulty of configuring an ANC controller due to moving noise sources, which are typically located far from ANC systems. In this paper, a pseudo noise source method is proposed for configuring fixed-coefficient feedforward ANC systems for traffic noise control. First, a minimum of one pseudo noise source is placed near an ANC system to determine the control coefficients in the tuning stage. Second, the ANC systems are run to reduce the noise from far-field traffic noise sources using the optimal control coefficients in the cancelling stage. The feasibility and limitations of the proposed method are investigated by illustrating the effect of the pseudo noise source position on the noise reduction performance of the ANC system. The simulation results show that the performance of the ANC system increases with distance when the pseudo noise sources move farther from the system but approaches a constant when the pseudo noise sources are in the far field. The indoor experimental results are consistent with the simulation results. The outdoor experimental results of a six-channel coupled system show a noise reduction of 3 dB below 500 Hz at the position of a dummy head.

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http://hdl.handle.net/10453/129895