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International Journal of Antennas and Propagation
Volume 2015, Article ID 179304, 7 pages
Research Article

3D Imaging of Dielectric Objects Buried under a Rough Surface by Using CSI

Faculty of Electrical and Electronics Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey

Received 13 February 2015; Accepted 27 May 2015

Academic Editor: Vincenzo Galdi

Copyright © 2015 Evrim Tetik and Ibrahim Akduman. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A 3D scalar electromagnetic imaging of dielectric objects buried under a rough surface is presented. The problem has been treated as a 3D scalar problem for computational simplicity as a first step to the 3D vector problem. The complexity of the background in which the object is buried is simplified by obtaining Green’s function of its background, which consists of two homogeneous half-spaces, and a rough interface between them, by using Buried Object Approach (BOA). Green’s function of the two-part space with planar interface is obtained to be used in the process. Reconstruction of the location, shape, and constitutive parameters of the objects is achieved by Contrast Source Inversion (CSI) method with conjugate gradient. The scattered field data that is used in the inverse problem is obtained via both Method of Moments (MoM) and Comsol Multiphysics pressure acoustics model.