A Multifrequency Radar System for Detecting Humans and Characterizing Human Activities for Short-Range Through-Wall and Long-Range Foliage Penetration Applications
Figure 14
Detection of a small trihedral target placed 1.22 m (4 ft) behind a 10.2 cm (4 in) thick brick wall. Both no target and target present cases are shown, as well as the implementation of the background subtraction algorithm which suppresses non-target responses and enhances target response.