Through-Wall Imaging for a Metallic Cylinder

機構典藏 > College of Engineering > Graduate Institute & Department of Electrical Engineering > Journal Article > Item 987654321/89158

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Title:	Through-Wall Imaging for a Metallic Cylinder
Authors:	Chiu, Chien-Ching;Sun, Chi-Hsien
Contributors:	淡江大學電機工程學系
Keywords:	through-wall imaging;shape reconstruction;dynamic differential evolution
Date:	2013-01-01
Issue Date:	2013-05-22 14:24:39 (UTC+8)
Publisher:	Abingdon: Taylor & Francis
Abstract:	Through-wall imaging (TWI) is proposed to reconstruct the shape of a metallic cylinder. The ability of dynamic differential evolution (DDE) stochastic searching algorithm for shape reconstruction of 2D conducting targets hidden behind a homogeneous building wall is demonstrated by using simulated backscattered fields. After an integral formulation, a discretisation using the method of moment is applied. The TWI problem is recast as a nonlinear optimisation problem with an objective function (OF) defined by the norm of a difference between the measured and calculated scattered electric field. Thus, the shape of metallic cylinder can be obtained by minimising the OF. Simulations show that DDE can successfully reconstruct the TWI for a metallic cylinder. In addition, the effect of Gaussian noise on the reconstruction is investigated.
Relation:	Nondestructive Testing and Evaluation 28(1), pp.72-81
DOI:	10.1080/10589759.2012.707198
Appears in Collections:	[Graduate Institute & Department of Electrical Engineering] Journal Article

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