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Time domain inversion techniques for electromagnetic scattering problems

In English

Författare

Redaktör

  • James P. Corones
  • Paul Nelson
  • Gerhard Kristensson
  • Daniel L. Seth

Summary, in English

This paper presents a review of and a comparison between two different methods

to solve an inverse scattering problem in the time domain. The problem

is that of propagation of transient electromagnetic waves in spatially inhomogeneous

slabs of finite length. The permittivity and conductivity profiles

are assumed to vary only with depth and the scattering problem is thus onedimensional.

Several algorithms to solve the direct and inverse scattering

problems for continuous and discontinuous permittivity profiles are suggested.

Some of these algorithms have not been published before. The aim of this paper

is to compare and review these methods. More specifically, the numerical

performance of the invariant imbedding approach (layer-stripping)and the

Green functions formulation (downward continuation)is compared. Some

new results based upon time reversal techniques for a lossless slab are presented

in an appendix.

Publiceringsår

1992

Språk

Engelska

Sidor

1-29

Publikation/Tidskrift/Serie

Invariant imbedding and inverse problems

Dokumenttyp

Del av eller Kapitel i bok

Förlag

Society for Industrial and Applied Mathematics

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering
  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Forskningsgrupp

  • Electromagnetic theory

ISBN/ISSN/Övrigt

  • ISBN: 0-89871-305-6