Accession Number:

ADA238262

Title:

Numerical Methods for Scattering from Electrically Large Objects

Descriptive Note:

Final rept. 1 Apr 1989-31 Mar 1991

Corporate Author:

ROCKWELL INTERNATIONAL CORP THOUSAND OAKS CA SCIENCE CENTER

Report Date:

1991-05-31

Pagination or Media Count:

92.0

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.

Subject Categories:

  • Numerical Mathematics
  • Active and Passive Radar Detection and Equipment
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE