Tracking of dismounts moving in cross-range using GMTI radar

The detection of dismounts has a variety of applications, such as tracking remotely for battlefield awareness or at check-points. In this paper we describe the sensitivity of ground moving target indication (GMTI) radar as a dismount moves in cross-range, where the radial velocity is difficult to detect but the micro-Doppler of moving dismounts makes feasible. GMTI target detections are used as a subject moves perpendicular to the beam of the radar. These measurements are compared to vehicular and animal measurements which have minimal micro-Doppler and are much more difficult to detect in their cross-range motion. Ground truth is gathered using video to validate the radar data. We find a detection probability on dismounts in excess of 85% with a low false positive rate of 2%.