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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/46299

    Title: Image reconstruction for a partially immersed perfectly conducting cylinder using the steady state genetic algorithm
    Authors: Li, Ching-Lieh;Chen, Shao-Hon;Yang, Chih-Ming;Chiu, Chien-Ching
    Contributors: 淡江大學電機工程學系
    Keywords: Atmospheric composition;Electric conductivity;Engine cylinders;Genetic algorithms;Imaging techniques;Light scattering;Nonlinear equations;Inverse problem;Partially immersed;Steady state genetic algorithm;Transverse magnetic (TM) wave;Image reconstruction
    Date: 2004-04
    Issue Date: 2013-08-08 14:51:46 (UTC+8)
    Publisher: Hoboken: Wiley-Blackwell Publishing, Inc.
    Abstract: This paper presents a computational approach to the imaging of a partially immersed perfectly conducting cylinder by the steady state genetic algorithm. A conducting cylinder of unknown shape scatters the incident transverse magnetic (TM) wave in free space while the scattered field is recorded in free space. Based on the boundary condition and the measured scattered field, a set of nonlinear integral equations is derived and the imaging problem is reformulated into an optimization problem. An improved steady state genetic algorithm is employed to search for the global extreme solution. Numerical results demonstrate that, even when the initial guess is far away from the exact one, good reconstruction can be obtained. Numerical results also show that the reconstructed image in the free space area is better than that in the medium area.
    Relation: Radio Science 39(2), RS2016(10 pages)
    DOI: 10.1029/2002RS002742
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Journal Article

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