Microwave imaging of cylindrical inhomogeneities based on an analytical forward solver and multiple illuminations

Author

Caorsi, S. ; Massa, A. ; Pastorino, Matteo ; Raffetto, M. ; Randazzo, A.

Author_Institution

Dept. of Electron., Pavia Univ., Italy

fYear

2004

fDate

38121

Firstpage

100

Lastpage

105

Abstract

A global optimization procedure for the detection of buried inhomogeneities is extended to the case of multiple illuminations. The object inhomogeneities are schematized as multilayer infinite dielectric cylinders with elliptic cross sections. A recursive analytical procedure is used for the computation of the forward scattering. A functional is constructed in which the field is expressed in series solution of Mathieu functions. Starting by the input scattered data, the iterative minimization of the functional is performed by applying a memetic algorithm. Numerical results are reported showing the advantages of using a multi-illumination process. A preliminary experimental validation is also reported.

Keywords

buried object detection; dielectric bodies; electromagnetic wave scattering; iterative methods; microwave imaging; optimisation; analytical forward solver; cylindrical inhomogeneity; dielectric cylinder; electromagnetic imaging; forward scattering; genetic algorithm; inverse scattering; iterative minimization; memetic algorithm; microwave imaging system; multiple illumination; optimization procedure; recursive analytical procedure; Dielectrics; Electromagnetic scattering; Image analysis; Image reconstruction; Inverse problems; Iterative algorithms; Lighting; Microwave imaging; Nonlinear equations; Object detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Imaging Systems and Techniques, 2004. (IST). 2004 IEEE International Workshop on

Print_ISBN

0-7803-8591-8

Type

conf

DOI

10.1109/IST.2004.1397292

Filename

1397292