Numerical Methods for Scattering from Electrically Large Objects

Abstract

A new and computationally very efficient integral equation numerical method for computing electromagnetic scattering and Radar Cross Section (RCS) was developed. A theory of higher order impedance boundary conditions was derived to handle single and multiple dielectric coatings around conductors. The method was tested in two dimensions using a 14,000-line FORTRAN program and was found to be very promising for electrically large objects. Initial ideas for extensions to three dimensions were explored. Treatments of trailing edge and corner singularities were developed.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1991
Accession Number
ADA238262

Entities

People

  • Bjorn Enguist
  • Marius S. Vassiliou
  • Vladimir Rokhlin
  • W. D. Murphy

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Acoustic Scattering
  • Algorithms
  • Applied Mathematics
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Science
  • Differential Equations
  • Electric Fields
  • Electromagnetic Scattering
  • Equations
  • Geometry
  • Helmholtz Equations
  • Integral Equations
  • Linear Systems
  • Magnetic Fields
  • Materials
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Vision.
  • Plasma Physics / Magnetohydrodynamics