Simultaneous reconstruction of permittivity and conductivity profiles in a radially inhomogeneous slab

T. M. Habashy, W. C. Chew, E. Y. Chow

Research output: Contribution to journalArticlepeer-review

Abstract

This paper considers the simultaneous reconstruction of permittivity and conductivity profiles in a cylindrically stratified geometry. It is assumed that both the permittivity and conductivity may only vary in the radial direction, and that the unknown region, to be probed, is an annulus of known thickness. An iterative method for the simultaneous inversion of the radial permittivity and conductivity profiles inside this annulus is presented. This method employs a distorted‐Born approximation at each iteration step. The inherent nonuniqueness of the problem is circumvented by imposing additional constraints that limit the set of feasible solutions. Numerical simulations show that good results can be obtained for smoothly varying profiles even when a limited number of measurements at a single frequency are used.

Original languageEnglish (US)
Pages (from-to)635-645
Number of pages11
JournalRadio Science
Volume21
Issue number4
DOIs
StatePublished - Jan 1 1986

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering

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