An improved geometric approach to conflict resolution in curve trajectory

With the rapid increase of air traffic in China, flight conflicts between aircraft happen frequently. In order to efficiently resolve conflicts between aircraft, an improved geometric approach for curve flight trajectory based on projective geometry is proposed in this paper. A geometric approach is introduced to optimize the conflict resolution first. Then we improve the approach for flight paths with trajectory change points (TCPs) using the intent information of aircraft. The improved method can deal with TCPs and advance the speed of decision-making while temporary conflicts occur. At last we present two simulations to validate the rationality of the proposed approach, and the result shows it´s capability to resolve the conflicts practically and efficiently with less maneuver changes compared with original method for straight flight trajectory.