MMW Imaging using polarimetric measurements

In this paper we present a complete process that goes from measurements to image extraction with the objective to help radar designers to set their system specifications. We focus on objects of interest for security scanners and therefore choose to perform the tests on a ceramic knife and a fake gun made of aluminum. We highlight polarization issues. We show that polarization has a dramatic influence on the image contrast when objects are concealed due to the creases of the clothes. This can be overcome with the use of a dual polarized system and segmentation algorithms exploiting polarizations results.