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dc.contributor.authorGong, Zheng
dc.contributor.authorRatilal, Purnima
dc.contributor.authorMakris, Nicholas
dc.date.accessioned2017-03-28T15:30:51Z
dc.date.available2017-03-28T15:30:51Z
dc.date.issued2015-11
dc.date.submitted2015-09
dc.identifier.issn0001-4966
dc.identifier.urihttp://hdl.handle.net/1721.1/107751
dc.description.abstractThe array invariant method, previously derived for instantaneous range and bearing estimation of a single broadband impulsive source in a horizontally stratified ocean waveguide, can be generalized to simultaneously localize multiple uncorrelated broadband noise sources that are not necessarily impulsive in the time domain by introducing temporal pulse compression and an image processing technique similar to the Radon transform. This can be done by estimating the range and bearing of broadband non-impulsive sources from measured beam-time migration lines of modal arrivals along a horizontal array arising from differences in modal group velocity and modal polar angle for each propagating mode. The generalized array invariant approach is used to estimate the range of a vertical source array and vocalizing humpback whales over wide areas from measurements made by a towed horizontal receiver array during the Gulf of Maine 2006 Experiment. The localization results are shown to have roughly 12% root-mean-squared errors from Global Positioning System measured ground truth positions for controlled source transmissions and less than 10% discrepancy from those obtained independently via moving array triangulation for vocalizing humpbacks, respectively.en_US
dc.language.isoen_US
dc.publisherAcoustical Society of America (ASA)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1121/1.4932547en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAcoustical Society of Americaen_US
dc.titleSimultaneous localization of multiple broadband non-impulsive acoustic sources in an ocean waveguide using the array invarianten_US
dc.typeArticleen_US
dc.identifier.citationGong, Zheng, Purnima Ratilal, and Nicholas C. Makris. “Simultaneous Localization of Multiple Broadband Non-Impulsive Acoustic Sources in an Ocean Waveguide Using the Array Invariant.” The Journal of the Acoustical Society of America 138, no. 5 (November 2015): 2649–2667.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorGong, Zheng
dc.contributor.mitauthorRatilal, Purnima
dc.contributor.mitauthorMakris, Nicholas
dc.relation.journalThe Journal of the Acoustical Society of Americaen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsGong, Zheng; Ratilal, Purnima; Makris, Nicholas C.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0003-4369-296X
mit.licensePUBLISHER_POLICYen_US


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