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Single-layer array method to reconstruct extended sound sources facing a parallel reflector
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0001-5723-9571
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0002-3609-3005
2017 (English)In: Journal of the Acoustical Society of America, ISSN 0001-4966, E-ISSN 1520-8524, Vol. 141, no 5, p. 3984-3984Article in journal, Meeting abstract (Other academic) Published
Abstract [en]

The accuracy of sound field reconstruction methods with single-layer microphone arrays is subject to the room or enclosure in which the measurements take place. Thus, the authors recently introduced a single-layer method that can be employed to reconstruct compact sources in the presence of a reflecting surface that is parallel to the array. Now the authors propose a method conceived for extended planar sources such as baffled plates facing a parallel reflector. The method is based on a wavenumber-domain function describing the propagation paths between the source, the reflector and the array. The free-space sound field radiated by the source is then recovered by means of a regularized inversion of the propagation function. Numerical simulations are performed in order to assess the method's performance and potential for source reconstructions. The results are promising and point towards future experimental validation.

Place, publisher, year, edition, pages
Acoustical Society of America (ASA), 2017. Vol. 141, no 5, p. 3984-3984
Keywords [en]
Acoustic waves, Microphones, Surface reconstruction, Acoustical measurements
National Category
Fluid Mechanics and Acoustics
Research subject
Vehicle and Maritime Engineering
Identifiers
URN: urn:nbn:se:kth:diva-211294DOI: 10.1121/1.4989106OAI: oai:DiVA.org:kth-211294DiVA, id: diva2:1128835
Conference
Acoustics '17 Boston – 173rd Meeting of the Acoustical Society of America and the 8th Forum Acusticum
Funder
Swedish Research Council, 26628
Note

QC 20170803

Available from: 2017-07-29 Created: 2017-07-29 Last updated: 2017-08-03Bibliographically approved

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  • apa
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