Application of Ray Theory to Low Frequency Propagation

Abstract

The development of ray tracing techniques is reviewed, and the effects of various sound-speed representations on the computed value of propagation loss are discussed. Since modified ray theories designed to treat caustics lose their effectiveness at the lower acoustic frequencies, an alternative approach for the horizontally stratified case is proposed. For oceans that are nearly horizontally stratified, the method of horizontal rays is applicable. Computed predictions are compared with measured data.

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Document Details

Document Type
Technical Report
Publication Date
Dec 18, 1974
Accession Number
ADA003473

Entities

People

  • Henry Weinberg

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Properties
  • Acoustics
  • Amplitude
  • Boltzmann Equation
  • Computer Programs
  • Computers
  • Curve Fitting
  • Differential Equations
  • Equations
  • Frequency
  • Integrals
  • Intensity
  • Numbers
  • Ray Tracing
  • Square Roots
  • Wave Equations

Readers

  • Acoustical Oceanography.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Systems Analysis and Design