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dc.contributor.authorCollis, Jon M.  Concept link
dc.contributor.authorDuda, Timothy F.  Concept link
dc.contributor.authorLynch, James F.  Concept link
dc.contributor.authorDeFerrari, Harry A.  Concept link
dc.date.accessioned2008-12-26T18:54:58Z
dc.date.available2008-12-26T18:54:58Z
dc.date.issued2008-08-28
dc.identifier.citationJournal of the Acoustical Society of America 124 (2008): EL97-EL103en
dc.identifier.urihttps://hdl.handle.net/1912/2610
dc.descriptionAuthor Posting. © Acoustical Society of America, 2008. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 124 (2008): EL97-EL103, doi:10.1121/1.2947630.en
dc.description.abstractUsing a moored source and horizontal/vertical line array combination, horizontal coherence properties of high signal to noise ratio (>=20 dB) 100–1600 Hz signals have been measured. Internal waves in the area of the measurement created moving episodic sound-speed anomaly structures, influencing coherence length. Measured horizontal coherence scales for 100 Hz ranged from 5 to 20 acoustic wavelengths, and were inversely related to the sound-speed anomaly strength. Horizontal field properties were compared with fields computed using modal decompositions of the vertical signals. The comparison allows azimuthal field coherence properties to be studied apart from normal-mode interference effects.en
dc.description.sponsorshipThis work was funded by grants to Boston University and the Woods Hole Oceanographic Institution from the Ocean Acoustics Program at the U.S. Office of Naval Research, including an ONR Postdoctoral Fellowship award to the first author.en
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.relation.urihttps://doi.org/10.1121/1.2947630
dc.subjectAcoustic arraysen
dc.subjectAcoustic signal processingen
dc.subjectAcoustic wave velocityen
dc.subjectOcean wavesen
dc.subjectUnderwater acoustic propagationen
dc.titleObserved limiting cases of horizontal field coherence and array performance in a time-varying internal wavefielden
dc.typeArticleen
dc.identifier.doi10.1121/1.2947630


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