Comparative Evaluation of Kirchhoff, Perturbation, and Full Wave Methods for Rough Surface Scattering

Abstract

This report summarizes the principal results in three areas of investigation. The first is a new full wave method that takes two dimensional surface roughness into account and does not use the telegraphist's equations. The second study concerns scattering from a rough surface when the incident field is a gaussian beam. The third is a summary of the difficulties inherent in Bahar's extended full wave theory on which the prediction of enhanced backscatter was based. It was found that enhanced backscatter occurred only because of the invalid assumption that the heights and slopes were uncorrelated.

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Document Details

Document Type
Technical Report
Publication Date
Aug 13, 1993
Accession Number
ADA271198

Entities

People

  • R. E. Collin

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Artifacts
  • Backscattering
  • Coefficients
  • Coordinate Systems
  • Electromagnetic Scattering
  • Equations
  • Military Research
  • Optical Lattices
  • Perturbation Theory
  • Perturbations
  • Plane Waves
  • Roughness
  • Scattering
  • Scattering Cross Sections
  • Statistical Analysis
  • Test And Evaluation
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Theoretical Analysis.