Ocean Acoustic Propagation Predictions from Averaged Sound Speeds Compared to Individual Sound Speeds

Abstract

Wave propagation through randomness models much ocean acoustic behavior. Random sound speed introduces non-linearity in the differential equations for the ensemble averages. This leads to results which can be significantly different than if an averaged volume parameters, such as sound speed, are used in a deterministic equation. We examine some theoretical aspects of randomness in the normal mode and parabolic equations. As an example, transmission losses in several specific examples are computed where differences result.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1993
Accession Number
ADA262987

Entities

People

  • Robert A. Zingarelli
  • Roger M. Oba
  • Stanley A. Chin-bing

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Waves
  • Acoustics
  • Boundaries
  • Differential Equations
  • Eigenvalues
  • Elastic Waves
  • Equations
  • Military Research
  • Probability
  • Probability Distributions
  • Research Management
  • Transmission Loss
  • Wave Equations
  • Wave Propagation
  • Waves

Readers

  • Acoustics.
  • Computational Modeling and Simulation
  • Oceanography.