Two-dimensional permittivity profile reconstruction with distorted Rytov iterative method

Author

Zhang, Wenji ; Hoorfar, Ahmad

Author_Institution

Antenna Res. Lab., Villanova Univ., Villanova, PA, USA

fYear

2011

fDate

22-25 May 2011

Firstpage

92

Lastpage

95

Abstract

The distorted Rytov iterative method (DRIM) is proposed for the reconstruction of unknown object with intermediate contrast embedded in two-dimensional (2D) homogeneous space. The DRIM is based on the distorted-wave Rytov approximation and is solved iteratively by incrementally correcting the estimated contrast function in each iteration step. The background medium Green´s function is calculated numerically and is updated in each iteration step. Experimental results for different sets of dielectric targets are presented to validate the proposed method for 2D target permittivity reconstruction.

Keywords

Green´s function methods; approximation theory; electromagnetic wave scattering; iterative methods; permittivity; 2D homogeneous space; 2D target permittivity reconstruction; DRIM; Green´s function; dielectric targets; distorted Rytov iterative method; electromagnetic wave scattering; two-dimensional homogeneous space; two-dimensional permittivity profile reconstruction; Approximation methods; Image reconstruction; Imaging; Iterative methods; Permittivity; Receivers; Scattering; Green´s function; distorted Rytov iterative method; distorted-wave Rytov approximation; inverse scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8556-7

Type

conf

DOI

10.1109/ICMTCE.2011.5915171

Filename

5915171