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Article: Placement design of microphone arrays in near-field broadband beamformers

TitlePlacement design of microphone arrays in near-field broadband beamformers
Authors
KeywordsBeamformer
Microphone Array
Placement Design
Issue Date2012
Citation
Ieee Transactions On Signal Processing, 2012, v. 60 n. 3, p. 1195-1204 How to Cite?
AbstractIn beamformer design, the microphone array configuration is often prescribed and the filter coefficients are varied in order to improve on the noise reduction performance. However, the positions of the microphone elements play an important role in the overall performance and should be optimized at the same time. This problem is addressed in this paper. In order to understand the performance improvement through location movements, we first look at the design with an infinite filter length, which gives the performance limit for finite filter length designs. When the filter length is finite, both the filter coefficients and the placement of the microphone array are decision variables. In both situations, the problems can be formulated as constrained optimization problems. As the filter length increases, we show that the performance converges quickly to the limit. For illustration, two numerical examples are solved. Comparing with several popular configurations, we show that the performance of the optimized configuration improves significantly. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155953
ISSN
2015 Impact Factor: 2.624
2015 SCImago Journal Rankings: 2.004
ISI Accession Number ID
Funding AgencyGrant Number
RGCPolyU. (5365/09E)
NSFC10901170
Research Committee of the Hong Kong Polytechnic University
ARCDP1096348
Funding Information:

This work was supported by RGC Grant PolyU. (5365/09E). The work of Z. G. Feng and K. F. C. Yiu was also supported by an NSFC Grant (10901170) and the Research Committee of the Hong Kong Polytechnic University. The work of S. E. Nordholm was supported by the ARC DP1096348.

References

 

DC FieldValueLanguage
dc.contributor.authorFeng, ZGen_US
dc.contributor.authorYiu, KFCen_US
dc.contributor.authorNordholm, SEen_US
dc.date.accessioned2012-08-08T08:38:35Z-
dc.date.available2012-08-08T08:38:35Z-
dc.date.issued2012en_US
dc.identifier.citationIeee Transactions On Signal Processing, 2012, v. 60 n. 3, p. 1195-1204en_US
dc.identifier.issn1053-587Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/155953-
dc.description.abstractIn beamformer design, the microphone array configuration is often prescribed and the filter coefficients are varied in order to improve on the noise reduction performance. However, the positions of the microphone elements play an important role in the overall performance and should be optimized at the same time. This problem is addressed in this paper. In order to understand the performance improvement through location movements, we first look at the design with an infinite filter length, which gives the performance limit for finite filter length designs. When the filter length is finite, both the filter coefficients and the placement of the microphone array are decision variables. In both situations, the problems can be formulated as constrained optimization problems. As the filter length increases, we show that the performance converges quickly to the limit. For illustration, two numerical examples are solved. Comparing with several popular configurations, we show that the performance of the optimized configuration improves significantly. © 2011 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Signal Processingen_US
dc.subjectBeamformeren_US
dc.subjectMicrophone Arrayen_US
dc.subjectPlacement Designen_US
dc.titlePlacement design of microphone arrays in near-field broadband beamformersen_US
dc.typeArticleen_US
dc.identifier.emailYiu, KFC:cedric@hkucc.hku.hken_US
dc.identifier.authorityYiu, KFC=rp00206en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/TSP.2011.2178491en_US
dc.identifier.scopuseid_2-s2.0-84857215469en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84857215469&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume60en_US
dc.identifier.issue3en_US
dc.identifier.spage1195en_US
dc.identifier.epage1204en_US
dc.identifier.isiWOS:000300424500017-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridFeng, ZG=12753600700en_US
dc.identifier.scopusauthoridYiu, KFC=24802813000en_US
dc.identifier.scopusauthoridNordholm, SE=7005690573en_US

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