A Three Dimensional Microwave Tomography Employing an Adjoint Network Theorem Based Sensitivity Matrix

Author

Drogoudis, Dimitrios G. ; Kyriacou, George A. ; Sahalos, John N.

Author_Institution

Dept. of Electr. & Comput. Eng., Democritus Univ. of Thrace, Xanthi

Volume

45

Issue

3

fYear

2009

fDate

3/1/2009 12:00:00 AM

Firstpage

1686

Lastpage

1689

Abstract

A reconstruction algorithm for three dimensional microwave imaging based on the modified perturbation method is proposed. Both the object conductivity (sigma) and permittivity (epsiv_r) are reconstructed. The original Perturbation method developed for static problems was modified in order to apply in time harmonic problem at microwave frequencies. The Jacobian matrix is calculated in closed form employing an adjoint network theorem in conjunction with the electromagnetics reciprocity theorem. A number of successful reconstructions were carried out for different complex permittivity profiles, but all of them based on a computer phantom approach.

Keywords

image reconstruction; microwave imaging; permittivity; perturbation theory; tomography; 3D microwave tomography; Jacobian matrix; adjoint network theorem; complex permittivity profile; computer phantom approach; electromagnetics reciprocity theorem; modified perturbation method; object conductivity; object permittivity; reconstruction algorithm; sensitivity matrix; time harmonic problem; Adjoint network; microwave tomography; modified perturbation method (MPM); sensitivity matrix;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2012782

Filename

4787313