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    A higher-order split-step Fourier parabolic-equation sound propagation solution scheme

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    JAS00EL61.pdf (1.462Mb)
    Date
    2012-07-03
    Author
    Lin, Ying-Tsong  Concept link
    Duda, Timothy F.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/5349
    As published
    https://doi.org/10.1121/1.4730328
    DOI
    10.1121/1.4730328
    Keyword
     Acoustic waveguides; Helmholtz equations; Parabolic equations; Underwater acoustic propagation 
    Abstract
    A three-dimensional Cartesian parabolic-equation model with a higher-order approximation to the square-root Helmholtz operator is presented for simulating underwater sound propagation in ocean waveguides. The higher-order approximation includes cross terms with the free-space square-root Helmholtz operator and the medium phase speed anomaly. It can be implemented with a split-step Fourier algorithm to solve for sound pressure in the model. Two idealized ocean waveguide examples are presented to demonstrate the performance of this numerical technique.
    Description
    Author Posting. © Acoustical Society of America, 2012. 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 132 (2012): EL61-EL67, doi:10.1121/1.4730328.
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    • Applied Ocean Physics and Engineering (AOP&E)
    Suggested Citation
    Journal of the Acoustical Society of America 132 (2012): EL61-EL67
     

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