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. 2017 Dec 17;17(12):2929. doi: 10.3390/s17122929

Figure 7.

Figure 7

Simulation environment, (top) Unmanned Aerial Vehicle (UAV) is approaching the target. (a) Plane view; (b) 3D view; (c) UAV is flying at 20 m height; (d) target detection from 20 m height.