Acoustic Wave Propagation in Horizontally Variable Media

Abstract

An overview of the multipath expansion method of solving the Helmholtz wave equation to describe the underwater sound field for a fixed point source in a plane multilayered medium is presented. The approach is then extended to account for horizontal variations in bottom depth, bottom type, and sound speed in the stationary phase approximation. Comparisons of model results to a limited number of measured data sets and standard propagation codes are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA536061

Entities

People

  • Cathy A. Clark

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Waves
  • Amplitude
  • Boundaries
  • Boundary Value Problems
  • Contour Integrals
  • Data Sets
  • Engineering
  • Equations
  • Integrals
  • Losses
  • Shallow Water
  • Standards
  • Stationary
  • Underwater Sound
  • Wave Equations
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering