title: Microwave Imaging under Oblique Illumination.
abstract: Microwave imaging based on inverse scattering problem has been attracting many interests in the microwave society. Among some major technical challenges, the ill-posed, multi-dimensional inversion algorithm and the complicated measurement setup are critical ones that prevent it from practical applications. In this paper, we experimentally investigate the performance of the subspace-based optimization method (SOM) for two-dimensional objects when it was applied to a setup designed for oblique incidence. Analytical, simulation, and experimental results show that, for 2D objects, neglecting the cross-polarization scattering will not cause a notable loss of information. Our method can be potentially used in practical imaging applications for 2D-like objects, such as human limbs.
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. mengqingyang@zju.edu.cn.
authors.forename: Qingyang
authors.initials: Q
authors.lastname: Meng
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. kuiwenxu@hdu.edu.cn.
authors.forename: Kuiwen
authors.initials: K
authors.lastname: Xu
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. sfz@zju.edu.cn.
authors.forename: Fazhong
authors.initials: F
authors.lastname: Shen
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. aem@zju.edu.cn.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. desy@zju.edu.cn.
authors.forename: Dexin
authors.initials: D
authors.lastname: Ye
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. huangfujt@zju.edu.cn.
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Huangfu
authors.affiliation: Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79424, USA. changzhi.li@ttu.edu.
authors.forename: Changzhi
authors.initials: C
authors.lastname: Li
authors.affiliation: Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China. ranlx@zju.edu.cn.
authors.forename: Lixin
authors.initials: L
authors.lastname: Ran
keywords: SOM; inverse scattering problem; microwave imaging; oblique incidence