Experimental setup to simulate the performance of ISAR-based microwave personnel screening system

This paper presents experimental results to support the new architecture of the microwave personnel screening system, which can obtain radar images of concealed objects on moving subjects. The system uses natural motion of a subject to form the inverse synthetic aperture, which eliminates mechanical scanning from the system and reduces its microwave part to a linear antenna array. The coherent radar signal processing is achieved by using an RGB-D video sensor, which is responsible for tracking the subject as he or she moves in the vicinity of the linear antenna array. With the described experimental setup and imitation experiments with a moving mannequin it was shown that the joint processing of radar samples and video frames gives the detailed radar images of hidden objects.