Path-Integral Treatment of Intensity Behavior for Rays in a Sound Channel,

Abstract

The intensity coherence function (ICF) of the acoustic wave function from a point source is derived by the path-integral technique for transmission through internal waves in the presence of a sound channel. Separations in time are emphasized, although separations in transverse horizontal position, vertical position, and acoustic frequency are discussed. Approximate intensity coherence times, lengths, and bandwidths due to internal-wave fluctuations are derived. Analytic approximations suitable for computer coding are presented for the micropath focussing parameter gamma, which controls the deviation of higher intensity moments from the Rayleigh-distribution values.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1986
Accession Number
ADA184829

Entities

People

  • Roger Dashen
  • Stanley M. Flatte
  • Stephen A. Reynolds

Organizations

  • University of California, Santa Cruz

Tags

Communities of Interest

  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Acoustic Frequencies
  • Acoustic Phenomena
  • Acoustic Properties
  • Acoustic Waves
  • Acoustics
  • Bandwidth
  • Differential Equations
  • Equations
  • Frequency
  • Internal Waves
  • Measurement
  • Path Integrals
  • Physics
  • Physics Laboratories
  • Two Dimensional
  • Wave Equations
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Wave Propagation and Nonlinear Chaotic Dynamics.