Fig. 5: Detection of a UAV out of lab.
a Concept and experimental schematics. b Pictures of the field test. The probe comb pulses are transmitted and received by a collimator fixed on a tripod head, the target is a typical 4-axis UAV. c position information of a hovering UAV, which is regarded as a quasi-static target. Color bar: distance. d Distance between the dual-comb LIDAR and the target in continuous measurement. e The scenario that the LIDAR traces the UAV moving from P1 to P2 spatially. f Measured frames during the UAV movement. Color bar: distance. g During the flight of the UAV, we record its spatial parameters α, β and distance L.
