Coherence of Sound using Navy Sonars and Theoretical Developments

Abstract

The long term goal is to understand how and where the ocean affects the propagation of sound. The theory of rays is the traditional approach for quantifying where sound is affected. However, it has recently been determined that ray theory is very inaccurate at low and moderate frequencies. The primary objective is to use modern theories of wave propagation to quantify where the ocean affects the propagation of sound. The secondary objective is to understand how accurately models can be used to predict the coherence time of low frequency sounds in the deep ocean based on the fluctuations of internal waves.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2012
Accession Number
ADA575106

Entities

People

  • John L. Spiesberger

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Acoustic Propagation
  • Bandwidth
  • Deep Oceans
  • Energy Conservation
  • Frequency
  • Information Operations
  • Instructions
  • Internal Waves
  • Oceans
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Theoretical Analysis.