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Inverse scattering for the perfectly conducting cylinder by asynchronous particle swarm optimization

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5 Author(s)
Chien Wei ; Department of Electronic Engineering, De Lin Institute of Technology, Tu-Cheng City, Taipei County 236, Taiwan, ROC ; Jan-Ou Wu ; Chi-Hsien Sun ; Chien-Ching Chiub
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This paper reports a two-dimensional time-domain inverse scattering algorithm based upon the finite-difference time domain method for determining the shape of perfectly conducting cylinder. Finite difference time domain method (FDTD) is used to solve the scattering electromagnetic wave of a perfectly conducting cylinder. The inverse problem is resolved by an optimization approach and the global searching scheme asynchronous particle swarm optimization (APSO) is then employed to search the parameter space. By properly processing the scattered field, some EM properties can be reconstructed. One is the location of the conducting cylinder, the others is the shape of the perfectly conducting cylinder. Numerical result indicates that the APSO outperforms the PSO in terms of reconstruction accuracy and convergence speed.

Published in:

Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on

Date of Conference:

27-29 May 2011