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Results from the Geoacoustic Inversion Techniques Workshop using modal inverse methods

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3 Author(s)
Becker, K.M. ; Woods Hole Oceanogr. Instn., MA, USA ; Rajan, S. ; Frisk, G.V.

This paper presents the results of a perturbative inverse approach applied to the range-dependent acoustic data provided as part of the Geoacoustic Inversion Techniques Workshop. The method is based on the Hankel transform relationship between complex-pressure field data measured on a horizontal array and the depth-dependent Green's function for a horizontally stratified medium. The input data to the inversion algorithm are discrete values of horizontal wavenumbers estimated for locally range-independent subapertures of the acoustic data. Inversion results are presented with emphasis placed on inverting for compressional wave speed as a function of both range and depth in the bottom.

Published in:

Oceanic Engineering, IEEE Journal of  (Volume:28 ,  Issue: 3 )

Date of Publication:

July 2003

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