Subspace-Based Optimization Method for Reconstruction of 2-D Complex Anisotropic Dielectric Objects

被引:43
作者
Agarwal, Krishna [1 ]
Pan, Li [1 ]
Chen, Xudong [1 ]
机构
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
关键词
Anisotropy; inverse scattering; optimization; reconstruction; ELECTROMAGNETIC INVERSE SCATTERING; DIFFERENTIAL EVOLUTION; SIGNAL-SUBSPACE; CYLINDERS; ALGORITHM;
D O I
10.1109/TMTT.2010.2042523
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents an approach for reconstructing complex anisotropic dielectric objects. There are four main contributions of this work. First, the current work extends the sub-space-based optimization method for the reconstruction of complex anisotropic scatterers, which was proposed originally for the reconstruction of isotropic scatterers. Second, our implementation shows that although the problem of reconstructing the complex anisotropic scatterers is more complicated than the isotropic scatterer reconstruction, the subspace-based optimization can be extended to this problem without increasing the computational complexity of the solution. Third, this work provides some representative numerical examples for the problem of reconstruction of complex anisotropic scatterers. Fourth, this work presents an important insight into the nature of currents induced on the scatterers and their effect on the reconstruction problem.
引用
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页码:1065 / 1074
页数:10
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