Application of the Operator Expansion Method to Realistic Two-Dimensional (2D) Sea Surfaces

Abstract

The operator expansion method has been shown to model quickly and accurately acoustic scattering from surfaces with roughness similar to that of the oceans. In this paper, the monostatic backscatter is computed using the operator expansion method over an ensemble of modeled 2D deterministic sea surfaces. In particular, low grazing angle azimuthal dependence of the backscatter is explored.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1993
Accession Number
ADA262978

Entities

People

  • John Dubberley
  • Richard S. Keiffer

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Scattering
  • Acoustics
  • Backscattering
  • Data Sets
  • Far Field
  • Geometry
  • Grazing Angles
  • Integral Equations
  • Military Research
  • Perturbation Theory
  • Perturbations
  • Roughness
  • Scattering
  • Spectra
  • Surface Roughness
  • Two Dimensional
  • Waves

Fields of Study

  • Physics

Readers

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