Discontinuous-Galerkin microwave imaging

Author

Jeffrey, Ian ; Zakaria, A. ; LoVetri, Joe

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada

fYear

2014

fDate

13-16 July 2014

Firstpage

1

Lastpage

2

Abstract

We develop a high-order contrast source inversion method for solving the inverse scattering problem in electromagnetics. To decouple inversion from the mesh discretization, the algorithm supports high-order expansions for the fields, contrast and contrast sources on each element. The forward solver is a time-harmonic discontinuous Galerkin method formulated for Maxwell´s curl equations and is sufficiently general to easily model a variety of imaging environments. Numerical and experimental results for transverse magnetic inversion are presented.

Keywords

Galerkin method; Maxwell equations; electromagnetic wave scattering; microwave imaging; Maxwell curl equations; contrast sources; discontinuous-Galerkin microwave imaging; high-order contrast source inversion method; imaging environments; inverse scattering problem; mesh discretization; time-harmonic discontinuous Galerkin method; transverse magnetic inversion; Educational institutions; Image reconstruction; Method of moments; Microwave imaging; Microwave theory and techniques; Permittivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology and Applied Electromagnetics (ANTEM), 2014 16th International Symposium on

Conference_Location

Victoria, BC

Type

conf

DOI

10.1109/ANTEM.2014.6887655

Filename

6887655