Cooperative Trajectory Generation Using Pythagorean Hodograph Bezier Curves

This paper presents a cooperative trajectory-generation framework to efficiently compute a set of spatial trajectories for a team of cooperating vehicles: in particular, for unmanned aerial vehicles. The desired, feasible trajectories are generated using Pythagorean Hodograph Bezier curves, satisfy stringent spatial and temporal constraints, do not violate the dynamic constraints of the vehicles, and guarantee spatial deconfliction between the trajectories for safe operation. A multivehicle mission scenario is presented to show the efficacy of the proposed cooperative trajectory-generation framework.