Subspace-based optimization method for reconstructing extended scatterers: transverse electric case

被引：29

作者：

Pan, Li ^{[1
]}

Agarwal, Krishna ^{[1
]}

Zhong, Yu ^{[1
]}

Yeo, Swee Ping ^{[1
]}

Chen, Xudong ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2009年 / 26卷 / 09期

关键词：

INVERSE SCATTERING; MUSIC ALGORITHM; CONTRAST;

D O I：

10.1364/JOSAA.26.001932

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The subspace-based optimization method is generalized to the transverse electric (TE) case for reconstructing the relative-permittivity profiles of extended scatterers. The essence of the subspace-based optimization method is that part of the contrast source is determined from the spectrum analysis without recourse to optimization, whereas the rest is determined by using an optimization procedure. We show that the dimension of the signal subspace behaves somewhat as a regularization parameter. Due to the vectorial property of the TE wave, the reconstructed profile in TE case is smoother than that in the transverse magnetic (TM) case. (C) 2009 Optical Society of America

引用

页码：1932 / 1937

页数：6

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