21 October 2016 Polarization ratio property and material classification method in passive millimeter wave polarimetric imaging
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Abstract
Polarimetric measurements can provide additional information as compared to unpolarized ones. In this paper, linear polarization ratio (LPR) is created to be a feature discriminator. The LPR properties of several materials are investigated using Fresnel theory. The theoretical results show that LPR is sensitive to the material type (metal or dielectric). Then a linear polarization ratio-based (LPR-based) method is presented to distinguish between metal and dielectric materials. In order to apply this method to practical applications, the optimal range of incident angle have been discussed. The typical outdoor experiments including various objects such as aluminum plate, grass, concrete, soil and wood, have been conducted to validate the presented classification method.
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Yayun Cheng, Yayun Cheng, Bo Qi, Bo Qi, Siyuan Liu, Siyuan Liu, Fei Hu, Fei Hu, Liangqi Gui, Liangqi Gui, Xiaohui Peng, Xiaohui Peng, } "Polarization ratio property and material classification method in passive millimeter wave polarimetric imaging", Proc. SPIE 9993, Millimetre Wave and Terahertz Sensors and Technology IX, 99930K (21 October 2016); doi: 10.1117/12.2239946; https://doi.org/10.1117/12.2239946
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