Two Methods for Calculating the Physical Optics Field.

Abstract

In the theory of Physical Optics the field scattered by a curved reflecting surface S is represented by an integral whose numerical evaluation is difficult. Two methods for calculating this integral are discussed: A Monte Carlo method and the method by Facet Decomposition. The first is limited by round-off error whereas the second is limited by computer storage and CPU running time. The Facet Decomposition method is exact when S is flat, and is superior to the Monte Carlo method when S is only 'slightly curved' according to a certain criterion. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 29, 1984
Accession Number
ADA139116

Entities

People

  • W. B. Gordon

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Aspect Angle
  • Boundaries
  • Computers
  • Data Science
  • Decomposition
  • Electromagnetic Scattering
  • Error Analysis
  • Errors
  • Geometry
  • Information Science
  • Integrals
  • Military Research
  • Monte Carlo Method
  • Polygons
  • Scattering
  • Test And Evaluation

Fields of Study

  • Physics

Readers

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