Application of FDTD and Harmony Search Algorithm for Inverse Scattering Problem

Abstract

Electromagnetic inverse scattering of two-dimensional (2-D) perfectly conducting objects with transverse magnetic (TM) wave incidence by the harmony search algorithm (HS) is presented. The idea is to perform the image reconstruction by utilisation of HS to minimise the discrepancy between the measured and calculated scattered field data. Finite difference time domain method (FDTD) is used to solve the scattering electromagnetic wave of the objects. The efficiency of applying the above methods for microwave imaging of a two-dimensional perfectly conducting cylinder are examined. Numerical results show that good reconstruction can be obtained by the optimisation method. © Springer-Verlag Berlin Heidelberg 2013.