Enhancing concealed target detection through dual polarized 94 GHz radiometric sensor

Abstract

The concept of vector summation of a target response to two orthogonal polarized signals for enhancing its delectability, even under concealed conditions, have been demonstrated. A dual polarized 94 GHz radiometer mounted on a dual axis scanning systems has been utilized to collect the field data for the study of the concept. Emissivity gradient due to the presence of target embedded in a given background has been plotted in both orientation i.e. along x and y axis of the target using both horizontal and vertical polarization. Enhanced contrast due to vector summation of orthogonal polarization has been traced in both polarizations for concept validation.