Propagation of Low-Frequency, Transient Acoustic Signals through a Fluctuating Ocean: Development of a 3D Scattering Theory and Comparison with NPAL Experimental Data

Abstract

Development of a new, 3D theory of low-frequency, long-range sound propagation through a fluctuating ocean, including both CW and transient acoustic signals. Comparison of theoretical and numerical results with NPAL experimental data. To develop a 3D, modal theory of broadband sound propagation though a fluctuating ocean, including analysis of the coherence function for transient acoustic signals and temporal coherence. To develop computer codes for calculation of the horizontal and vertical coherence functions of transient acoustic signals and temporal coherence. To compare theoretical and numerical results with 1998-1999 and 2004 NPAL experimental data and those which will be obtained in the 2010-2011 NPAL experiment in the Philippine Sea.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2010
Accession Number
ADA542039

Entities

People

  • Alexander G. Voronovich
  • Vladimir E. Ostashev

Organizations

  • National Oceanic and Atmospheric Administration

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Signals
  • Broadband
  • Coordinate Systems
  • Crystal Lattice Vibrations
  • Differential Equations
  • Experimental Data
  • Frequency
  • Information Operations
  • Integrals
  • Internal Waves
  • Oceans
  • Path Integrals
  • Philippine Sea
  • Scattering
  • Sound Waves

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.