Estimation of the Two-Dimensional Homogenous Dielectric Scatterer in a Slab Medium Using Particle Swarm Optimization and Asynchronous Particle Swarm Optimization
學年 103
學期 2
出版（發表）日期 2015-03-19
作品名稱 Estimation of the Two-Dimensional Homogenous Dielectric Scatterer in a Slab Medium Using Particle Swarm Optimization and Asynchronous Particle Swarm Optimization
作品名稱（其他語言）
著者 Jen-Shiun Chiang; Wei-Siang Gu; Chien-Ching Chiu; Chi-Hsien Sun
單位
出版者
著錄名稱、卷期、頁數 Research in Nondestructive Evaluation 26(4), pp.208-224
摘要 A microwave imaging technique based on particle swarm optimization (PSO) and asynchronous particle swarm optimization (APSO) are proposed for the electromagnetic inverse scattering. In this article, the finite-difference time-domain (FDTD) method is employed for the analysis of the forward scattering part, while PSO and/or APSO schemes (combining with FDTD) are applied to tackle the inverse scattering part. These two schemes aim for the simultaneous reconstruction of the location, shape, and permittivity of the dielectric scatterer in a slab medium. The reconstruction is based on the minimization of a cost functional, which evaluates the difference between measured and estimated values of the electric field. These two schemes are tested by several numerical examples, and the numerical results indicate that APSO outperforms PSO in terms of reconstruction accuracy and convergence speed. Both techniques have been tested in the case of simulated measurements contaminated by additive white Gaussian noise.
關鍵字 asynchronous particle swarm optimization (APSO);cubic-spline;finite-difference timedomain;(FDTD);inverse scattering, particle swarm optimization (PSO);perfect matching layer;(PML);relative noise level (RNL);time domain
語言 en_US
ISSN 0934-9847
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Jen-Shiun Chian
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版,紙本
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