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dc.contributor.authorGong, Zheng
dc.contributor.authorChen, Tianrun
dc.contributor.authorRatilal, Purnima
dc.contributor.authorMakris, Nicholas
dc.date.accessioned2015-07-01T18:49:47Z
dc.date.available2015-07-01T18:49:47Z
dc.date.issued2013-09
dc.date.submitted2013-08
dc.identifier.issn00014966
dc.identifier.urihttp://hdl.handle.net/1721.1/97629
dc.description.abstractAn analytical model derived from normal mode theory for the accumulated effects of range-dependent multiple forward scattering is applied to estimate the temporal coherence of the acoustic field forward propagated through a continental-shelf waveguide containing random three-dimensional internal waves. The modeled coherence time scale of narrow band low-frequency acoustic field fluctuations after propagating through a continental-shelf waveguide is shown to decay with a power-law of range to the −1/2 beyond roughly 1 km, decrease with increasing internal wave energy, to be consistent with measured acoustic coherence time scales. The model should provide a useful prediction of the acoustic coherence time scale as a function of internal wave energy in continental-shelf environments. The acoustic coherence time scale is an important parameter in remote sensing applications because it determines (i) the time window within which standard coherent processing such as matched filtering may be conducted, and (ii) the number of statistically independent fluctuations in a given measurement period that determines the variance reduction possible by stationary averaging.en_US
dc.language.isoen_US
dc.publisherAcoustical Society of America (ASA)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1121/1.4824157en_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.titleTemporal coherence of the acoustic field forward propagated through a continental shelf with random internal wavesen_US
dc.typeArticleen_US
dc.identifier.citationGong, Zheng, Tianrun Chen, Purnima Ratilal, and Nicholas C. Makris. “Temporal Coherence of the Acoustic Field Forward Propagated through a Continental Shelf with Random Internal Waves.” The Journal of the Acoustical Society of America 134, no. 5 (2013): 3476. © 2013 Acoustical Society of Americaen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorGong, Zhengen_US
dc.contributor.mitauthorChen, Tianrunen_US
dc.contributor.mitauthorMakris, Nicholasen_US
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; Chen, Tianrun; Ratilal, Purnima; Makris, Nicholas C.en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-4369-296X
mit.licensePUBLISHER_POLICYen_US


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