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    A technique for measuring the plane-wave reflection coefficient of the ocean bottom

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    WHOI 81-24.pdf (4.608Mb)
    Date
    1981-04
    Author
    Frisk, George V.  Concept link
    Oppenheim, Alan V.  Concept link
    Martinez, David R.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/10244
    DOI
    10.1575/1912/10244
    Keyword
     Ocean bottom; Hankel functions; Reflectance 
    Abstract
    A new technique for the measurement of the plane-wave reflection coefficient of a horizontally stratified ocean bottom is described. It is based on the exact Hankel transform relationship between the reflection coefficient and the bottom reflected field due to a point source. The method employs a new algorithm for the numerical evaluation of the Hankel transform which is based on the "projection-slice" theorem for the two-dimensional Fourier transform. The details of the algorithm are described in the companion paper. Although the algorithm is applied to the case of an isovelocity ocean, the general theory for measuring the plane-wave reflection coefficient in a refracting ocean is developed. The technique provides information about the reflection coefficient, not only for real incident angles, _but also for complex angles, thus potentially providing substantial additional structural information about the bottom. The method is shown to yield excellent results with synthetically generated data for the cases of a hard bottom and slow isovelocity bottom.
    Description
    Also published as: Journal of the Acoustical Society of America 68 (1980): 602-612
    Collections
    • Applied Ocean Physics and Engineering (AOP&E)
    • WHOI Technical Reports
    Suggested Citation
    DOI not found
     

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