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Sensors 2016, 16(7), 1046; doi:10.3390/s16071046

Microwave Imaging under Oblique Illumination

1
Laboratory of Applied Research on Electromagnetics (ARE), Zhejiang University, Hangzhou 310027, China
2
Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79424, USA
*
Author to whom correspondence should be addressed.
Received: 7 May 2016 / Accepted: 5 July 2016 / Published: 6 July 2016
(This article belongs to the Special Issue Non-Contact Sensing)
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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. View Full-Text
Keywords: inverse scattering problem; microwave imaging; SOM; oblique incidence inverse scattering problem; microwave imaging; SOM; oblique incidence
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Meng, Q.; Xu, K.; Shen, F.; Zhang, B.; Ye, D.; Huangfu, J.; Li, C.; Ran, L. Microwave Imaging under Oblique Illumination. Sensors 2016, 16, 1046.

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