教師資料查詢 | 類別: 期刊論文 | 教師: 丘建青 Chiu Chien-ching (瀏覽個人網頁)

標題:Inverse Scattering of a Periodic Inhomogeneous Dielectric Scatterer
學年
學期
出版(發表)日期2020/05/26
作品名稱Inverse Scattering of a Periodic Inhomogeneous Dielectric Scatterer
作品名稱(其他語言)
著者Chien Ching Chiu; Bo Jie Hong; Jiang Hao
單位
出版者
著錄名稱、卷期、頁數Journal of Electromagnetic Waves and Applicationss 34(8), p.1015-1028
摘要This paper is to reconstruct the periodic inhomogeneous dielectric distribution of the scatterer buried in the rough surface. In order to explore the dielectric coefficient distribution of the unknown dielectric object under the rough surface, we emit electromagnetic wave to the object and measure the scattered electromagnetic wave above the rough surface. Base on Green’s identity and the induced current concepts, the nonlinear integral equation can be derived and solved by the method of moments. Next, the inverse scattering problem is converted into an optimization problem. We use Self-Adaptive Dynamic Differential Evolution (SADDE) and Asynchronous Particle Swarm Optimization (APSO) to find the extreme value of the problem. With the regularization technique, the reconstruction is good. When the noise is less than 1%, the dielectric constant can also be achieved successfully. Numerical results show that SADDE can reduce the error for the permittivities of the object better than the APSO.
關鍵字Microwave imaging;inhomogeneous dielectric scatterer;rough surface; Green’s identity;self-Adaptive dynamic Differential evolution (SADDE);Asynchronous particle Swarm optimization (APSO)
語言英文
ISSN0920-5071
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Chien Ching Chiu
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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