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dc.contributor.authorTollefsen, Dag
dc.contributor.authorGetstoft, Peter
dc.contributor.authorHodgkiss, William S.
dc.date.accessioned2017-03-28T10:49:19Z
dc.date.accessioned2017-03-29T10:40:48Z
dc.date.available2017-03-28T10:49:19Z
dc.date.available2017-03-29T10:40:48Z
dc.date.issued2017
dc.identifier.citationTollefsen D, Getstoft, Hodgkiss WS. Multiple-array passive acoustic source localization in shallow water. Journal of the Acoustical Society of America. 2017;141(3):1501-1513en_GB
dc.identifier.urihttp://hdl.handle.net/20.500.12242/612
dc.identifier.urihttps://ffi-publikasjoner.archive.knowledgearc.net/handle/20.500.12242/612
dc.descriptionTollefsen, Dag; Getstoft, Peter; Hodgkiss, William S.. Multiple-array passive acoustic source localization in shallow water. Journal of the Acoustical Society of America 2017 ;Volum 141.(3) s. 1501-1513en_GB
dc.description.abstractThis paper considers concurrent matched-field processing of data from multiple, spatially-separated acoustic arrays with application to towed-source data received on two bottom-moored horizontal line arrays from the SWellEx-96 shallow water experiment. Matched-field processors are derived for multiple arrays and multiple-snapshot data using maximum-likelihood estimates for unknown complex-valued source strengths and unknown error variances. Starting from a coherent processor where phase and amplitude is known between all arrays, likelihood expressions are derived for various assumptions on relative source spectral information (amplitude and phase at different frequencies) between arrays and from snapshot to snapshot. Processing the two arrays with a coherent-array processor (with inter-array amplitude and phase known) or with an incoherent-array processor (no inter-array spectral information) both yield improvements in localization over processing the arrays individually. The best results with this data set were obtained with a processor that exploits relative amplitude information but not relative phase between arrays. The localization performance improvement is retained when the multiple-array processors are applied to short arrays that individually yield poor performance.en_GB
dc.language.isoenen_GB
dc.relation.uridx.doi.org/10.1121/1.4976214
dc.subjectTermSet Emneord::Akustisk deteksjon
dc.subjectTermSet Emneord::Akustiske målinger
dc.subjectTermSet Emneord::Signalbehandling
dc.titleMultiple-array passive acoustic source localization in shallow wateren_GB
dc.typeArticleen_GB
dc.date.updated2017-03-28T10:49:19Z
dc.identifier.cristinID1461202
dc.identifier.cristinID1461202
dc.identifier.doi10.1121/1.4976214
dc.source.issn0001-4966
dc.source.issn1520-8524
dc.type.documentJournal article


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