Resonance Region Scattering

Abstract

Using frequency derivative information, techniques were developed to predict the scattering from conductor and dielectric 2-D targets over a frequency band. Instead of computing a method of moments solution using a point approach, a rational function model is used to approximate the current as a function of frequency. The model coefficients are computed using frequency derivative information at one frequency within the band to improve efficiency of conventional moment method approaches. Results show that the model based approach gives excellent results over a limited frequency band, and is much more efficient than the conventional point by point approach. Keywords: Spectral estimation, Frequency derivatives, Method of moments, Radar cross section.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1990
Accession Number
ADA226536

Entities

People

  • Ercument Arvas
  • Xiaopu Yang

Organizations

  • Syracuse University

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Coefficients
  • Computers
  • Electromagnetic Fields
  • Equations
  • Frequency
  • Frequency Bands
  • Frequency Response
  • Impedance
  • Information Security
  • Method Of Moments
  • Radar Cross Sections
  • Rational Functions
  • Resonance
  • Scattering
  • Security

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering