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dc.contributor.authorChu, Dezhang
dc.contributor.authorYe, Zhen
dc.date.accessioned2008-10-23T14:26:10Z
dc.date.available2008-10-23T14:26:10Z
dc.date.issued1999-10
dc.identifier.citationJournal of the Acoustical Society of America 106 (1999): 1732-1743en
dc.identifier.urihttp://hdl.handle.net/1912/2528
dc.descriptionAuthor Posting. © Acoustical Society of America, 1999. 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 106 (1999): 1732-1743, doi:10.1121/1.428036.en
dc.description.abstractThe distorted wave Born approximation (DWBA) method has been successfully used in modeling the acoustic backscattering by weakly scattering zooplankton [Stanton et al., J. Acoust. Soc. Am. 94, 3463–3472 (1993), Wiebe et al., IEEE J. Ocean. Eng. 22(3), 445–464 (1997)]. However, the previously developed DWBA model ignores the imaginary part of the scattering amplitude and thus results in a zero-extinction cross section. As a consequence, the model fails to predict the scattering-induced attenuation which could be important under certain circumstances. In this paper, a phase-compensated DWBA-based approximation is presented. The improved method allows us to compute not only the scattering strength but also the acoustic attenuation. The new scattering model is validated by comparing with the existing exact solution for certain representative finite objects. The results from this study can be applied to bioacoustic applications where the attenuation due to scattering and/or multiple scattering by zooplankton is relevant, and where this information might be used to infer the acoustic properties of live animals.en
dc.description.sponsorshipThis work was partially supported by the National Science Foundation under Grant No. OCE-9730680.en
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherAcoustical Society of Americaen
dc.relation.urihttps://doi.org/10.1121/1.428036
dc.subjectDWBAen
dc.subjectBackscatteren
dc.subjectAcoustic wave scatteringen
dc.subjectBioacousticsen
dc.titleA phase-compensated distorted wave Born approximation representation of the bistatic scattering by weakly scattering objects : application to zooplanktonen
dc.typeArticleen
dc.identifier.doi10.1121/1.428036


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