Research Papers

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

[+] Author Affiliations
Chien-Hung Chen

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

Chien-Ching Chiu

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

Chi-Hsien Sun

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

Wan-Ling Chang

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

J. Appl. Remote Sens. 5(1), 053522 (May 05, 2011). doi:10.1117/1.3583998
History: Received September 03, 2010; Revised March 19, 2011; Accepted March 25, 2011; Published May 05, 2011; Online May 05, 2011
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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.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

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(1), 053522 (May 05, 2011). ; http://dx.doi.org/10.1117/1.3583998


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