Title :
Inverse scattering of multiple dielectric cylinders buried under stratified media based on NR current using SQP-SOM
Author :
Siampour, Hamid Reza ; Nezhad, Abolghasem Zeidaabadi
Author_Institution :
Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
Inverse scattering of two dimensional dielectric objects buried under stratified media based on nonradiating (NR) current reconstruction is presented. For this we use electric field integral equation (EFIE) to formulate the direct scattering problem in transverse magnetic (TM) case, then we solve inverse scattering problem by subspace optimization method (SOM) based on sequential quadratic programming (SQP) algorithm as optimization procedure. Also the effect of NR current is determined by defining radiating and NR objective functions and comparing the imaging results from radiating and NR induced currents.
Keywords :
dielectric bodies; electric field integral equations; electromagnetic wave scattering; inhomogeneous media; quadratic programming; EFIE; NR current reconstruction; NR objective function; SQP-SOM algorithm; direct scattering problem; electric field integral equation; inverse scattering problem; multiple dielectric cylinders; nonradiating current reconstruction; radiating function; sequential quadratic programming algorithm; stratified media; subspace optimization method; transverse magnetic mode; two-dimensional dielectric objects; Equations; Image reconstruction; Imaging; Inverse problems; Nonhomogeneous media; Permittivity; Scattering; Inverse scattering; SQP-SOM; nonradiating (NR) current; stratified media;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
