Title
Acoustic source identification using a generalized weighted inverse beamforming technique
Author
Faculty/Department
Faculty of Applied Engineering Sciences
Publication type
article
Publication
London ,
Subject
Engineering sciences. Technology
Source (journal)
Mechanical systems and signal processing. - London
Volume/pages
32(2012) :October , p. 349-358
ISSN
0888-3270
ISI
000308783100026
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
In thelastyears,acousticsourceidentificationhasgainedspecialattention,mainlydue to newenvironmentalnorms,urbanizationproblemsandmoredemandingacoustic comfortexpectationofconsumers.Fromthecurrentmethods,beamformingtechniques are ofcommonuse,sincenormallydemandsaffordabledataacquisitioneffort,while producingclearsourceidentificationinmostoftheapplications.Inordertoimprove the sourceidentificationquality,thisworkpresentsamethod,basedontheGeneralized InverseBeamforming,thatusesaweightedpseudo-inverseapproachandanoptimiza- tion procedure,calledWeightedGeneralizedInverseBeamforming.Tovalidatethis method,asimplecaseoftwocompactsourcesinclosevicinityincoherentradiation was investigatedbynumericalandexperimentalassessment.Weightedgeneralized inverse resultsarecomparedtotheonesobtainedbytheconventionalbeamforming, MUltipleSignalClassification,andGeneralizedInverseBeamforming.Attheend,the advantagesoftheproposedmethodareoutlinedtogetherwiththecomputationaleffort increasecomparedtotheGeneralizedInverseBeamforming.
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