Reverberation Modelling Using a Parabolic Equation Method

Abstract

DRDC Atlantic has developed a Clutter Model for range-dependent environments based on adiabatic normal modes; however, this approach is expected to fail for strongly range-dependent environments. Alternatively, parabolic equation (PE) models are robust in strongly range-dependent environments. In this study the use of the DRDC PE model (PECan) was used to determine the feasibility of computing the reverberation and target echo fields in a variety of ocean waveguides. Calculations are compared to some problems from the U.S. Reverberation Modelling Workshops. The PE method reverberation estimates compare favourably to previously published results obtained by other authors and methods.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2012
Accession Number
ADA604021

Entities

People

  • Craig A. Hamm
  • David J. Thomson
  • Gary H. Brooke
  • Martin L. Taillefer

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Fields
  • Acoustics
  • Classification
  • Computer Programming
  • Computer Programs
  • Echoes
  • Equations
  • Geometry
  • Language
  • National Security
  • Reverberation
  • Scattering
  • Security
  • Target Echoes
  • Three Dimensional
  • Transmission Loss
  • Two Dimensional

Readers

  • Acoustical Oceanography.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)