Numerical Studies of Rough Surface Scattering Models

Abstract

A practical rough surface scattering model based on the non-local small slope approximation (NLSSA) [1],[2] is being developed and examined for pressure-release surfaces and fluid-fluid interfaces. To be practical, a rough surface scattering model must be easy to implement and easily incorporated into existing propagation models. At the same time, it must be accurate enough to give useful results. For purposes of this research, practical means that a rough surface scattering model must satisfy the following requirements: 1. No more than N-D integration away from low grazing angles, where N represents the dimension of the surface 2. No more than 2N-D integration at low grazing angles 3. Accuracy to within a few dB.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2005
Accession Number
ADA572368

Entities

People

  • Shira L. Broschat

Organizations

  • Washington State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Antisubmarine Warfare
  • Computer Science
  • Electrical Engineering
  • Engineering
  • Equations
  • Grazing
  • Grazing Angles
  • Integral Equations
  • Navy
  • Roughness
  • Scattering
  • Shallow Water
  • Spectra
  • Submarine Warfare
  • Wake Detection

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering