Research Article

A Multifrequency Radar System for Detecting Humans and Characterizing Human Activities for Short-Range Through-Wall and Long-Range Foliage Penetration Applications

Figure 25

Time series and time-frequency plots from arm swinging behind fully foliated bush at 30 m (98.4 ft). (a) Unfiltered and (b) filtered.
958905.fig.0025a
(a)
958905.fig.0025b
(b)