Title :
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
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;
Conference_Titel :
Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8556-7
DOI :
10.1109/ICMTCE.2011.5915171
