Full-Wave Inversion for Ocean Acoustical Tomography.
1997
Pai, D. M.
This report describes a wave-equation based inversion method in layered medium with potential applications to ocean acoustical tomography. This method caters specifically to the strong depth-dependence of the problem by building inversion on top of a depth-dependent background, as opposed to on a homogeneous background in traditional diffraction tomography methods. The method uses eigenmodes (defined with respect to the medium depth dependence) for data decomposition to mode-mode scattering amplitudes which are then used for medium extraction. This approach reduces the original 2-D medium inversion to a set of independent 1-D inversions.
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