Two-dimensional finite difference time domain inverse scattering scheme for a perfectly conducting cylinder

Chen, Chien-Hung; Chiu, Chien-Ching; Sun, Chi-Hsien; Chang, Wan-Ling

doi:doi:10.1117/1.3583998

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Journal of Applied Remote Sensing / Volume 5 / Research Papers

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Two-dimensional finite difference time domain inverse scattering scheme for a perfectly conducting cylinder

J. Appl. Remote Sens. 5, 053522 (May 05, 2011); http://dx.doi.org/10.1117/1.3583998

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Abstract

References (29)

Chien-Hung Chen

Taipei College of Maritime Technology, Department of Computer and Communication Engineering, New Taipei City, 25137 Taiwan

Chien-Ching Chiu, Chi-Hsien Sun, and Wan-Ling Chang

Tamkang University, Electrical Engineering Department, New Taipei City,25137 Taiwan

This paper reports a two-dimensional time-domain inverse scattering algorithm based upon the finite-difference time domain method (FDTD) for determining the shape of a perfectly conducting cylinder. 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 is then employed to search the parameter space. By properly processing the scattered field, some electromagnetic properties can be reconstructed. A set of representative numerical results is presented to demonstrate that the proposed approach is able to efficiently reconstruct the electromagnetic properties of metallic scatterer even when the initial guess is far away from the exact one. In addition, the effects of Gaussian noises on imaging reconstruction are also investigated.

History

Received Sep 03, 2010
Accepted Mar 25, 2011
Revised Mar 19, 2011
Published online May 05, 2011

Digital Object Identifier

http://dx.doi.org/10.1117/1.3583998

Citation

Chien-Hung Chen, Chien-Ching Chiu, Chi-Hsien Sun and Wan-Ling Chang, "Two-dimensional finite difference time domain inverse scattering scheme for a perfectly conducting cylinder", J. Appl. Remote Sens. 5, 053522 (May 05, 2011); http://dx.doi.org/10.1117/1.3583998