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:Microwave Imaging in Frequency Domain for Through-Wall Multiple Conductors
學年104
學期2
出版(發表)日期2016/07/01
作品名稱Microwave Imaging in Frequency Domain for Through-Wall Multiple Conductors
作品名稱(其他語言)
著者Yu, Chia-Ying; Chiu, Chien-Ching; Chou, Yu-Kai; Shen, Szu-Chi
單位
出版者
著錄名稱、卷期、頁數Journal of Testing and Evaluation 44(4), p.1617-1623
摘要This paper presents an inverse scattering problem for through-wall imaging. Two separate perfect-conducting cylinders of unknown shapes are behind a homogeneous building wall and illuminated by the transverse magnetic (TM) plane wave. After an integral formulation, a discretization using the method of moment (MoM) is applied. The through-wall imaging (TWI) problem is recast as a nonlinear optimization problem with an objective function defined by the norm of a difference between the measured and calculated scattered electric field. Thus, the shape of the metallic cylinder can be obtained by minimizing the objective function. The asynchronous particle swarm optimization (APSO) is employed to find out the global extreme solution of the object function. Numerical results demonstrate that even when the initial guesses are far away from the exact shapes, and the multiple scattered fields between two conductors are serious, good reconstruction still can be obtained. In addition, the effect of Gaussian noise on the reconstruction result is investigated and the numerical simulation shows that even though the signal-noise ratio (SNR) is 20 dB, we can still get good results of reconstructions.
關鍵字inverse problem;through-wall imaging;asynchronous particle swarm optimization;multiple scatterers
語言英文(美國)
ISSN0090-3973
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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