A super-resolution polarimetric direct mapping imaging algorithm for a bistatic UWB-radar

In this paper a real time capable 2D imaging method for ultra-wideband Radar is presented. A well known wavefront localization method is adapted and improved using a super-resolution wavefront extraction method and exploring the polarimetric information of the target under test. The imaging algorithm is real time capable and directly maps an extracted wavefront to the target contour in contrast to classical popular migration algorithms. Furthermore, the new proposed imaging algorithm is designed for a circular scanning trajectory, or a rotating target and a bi-static antenna configuration with two receiver antennas. Experimental validations are performed with a geometrically complex object, a M-sequence UWB Radar device (4.5 GHz - 13.5 GHz) and compact Vivaldi Ultra-Wideband antennas.