Microwave Imaging under Oblique Illumination

Qingyang Meng; Kuiwen Xu; Fazhong Shen; Bin Zhang; Dexin Ye; Jiangtao Huangfu; Changzhi Li; Lixin Ran
July 2016
Sensors (14248220);Jul2016, Vol. 16 Issue 7, p1046
Academic Journal
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.


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