Inverse electromagnetic medium scattering using a variable metric method

Author

Rieger, W. ; Haas, M. ; Huber, C. ; Lehner, G. ; Rucker, W.M.

Author_Institution

Inst. fur Theor. der Elektrotech., Stuttgart Univ., Germany

Volume

4

fYear

1997

fDate

13-18 July 1997

Firstpage

2621

Abstract

The 2D inverse electromagnetic scattering problem of reconstructing the material properties of inhomogeneous lossy dielectric cylindrical objects is considered. The material properties are reconstructed using scattering data from time-harmonic electromagnetic TM-polarized plane waves. The inverse scattering problem formulated as a nonlinear optimization problem is numerically solved using a variable metric method. This method is a quasi-Newton method and involves exact first-order gradients. Numerical examples are presented to show the efficiency of the algorithm.

Keywords

Newton method; electromagnetic wave polarisation; electromagnetic wave propagation; electromagnetic wave scattering; inverse problems; optimisation; 2D inverse EM scattering problem; algorithm efficiency; first-order gradients; inhomogeneous lossy dielectric cylindrical objects; inverse electromagnetic medium scattering; material properties reconstruction; nonlinear optimization problem; quasi-Newton method; scattering data; time-harmonic TM-polarized plane waves; variable metric method; Dielectric losses; Electric variables measurement; Electromagnetic scattering; Finite element methods; Frequency; Integral equations; Inverse problems; Material properties; Nonuniform electric fields; Permittivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest

Conference_Location

Montreal, Quebec, Canada

Print_ISBN

0-7803-4178-3

Type

conf

DOI

10.1109/APS.1997.625550

Filename

625550