Full-Wave Inversion for Ocean Acoustical Tomography.

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
May 01, 1997
Accession Number
ADA325911

Entities

People

  • D. M. Pai

Organizations

  • University of Houston

Tags

DTIC Thesaurus Topics

  • Acoustic Signals
  • Acoustics
  • Amplitude
  • Diffraction
  • Equations
  • Extraction
  • Frequency
  • Geometry
  • Inversion
  • Military Research
  • Scattering
  • Sound Transmission
  • Tomography
  • Two Dimensional
  • Underwater Acoustics
  • Wave Equations
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Systems Analysis and Design
  • Wave Propagation and Nonlinear Chaotic Dynamics.