Purpose: Current global trends of air traffic growth cause the increasing of number of aircraft conflicts. The actual problem is a development of new methods for conflict resolution that should provide the synthesis of conflict-free trajectories in three-dimensional space according to different flight efficiency criteria. Methods: The problem of multi-objective resolution of potential conflict between two aircraft in three-dimensional space is considered. The method of multi-objective resolution of conflict between two aircraft using heading, speed and altitude change maneuvers has been developed. Described method provides the synthesis of conflict-free flight trajectory according to criteria of flight regularity, flight economy and the complexity of maneuvering based on dynamic programming. The continuous-time and discrete-time equations of multi-objective dynamic programming for determining the set of Pareto-optimal estimations of conflict-flight trajectories are shown. The synthesis of Pareto-optimal trajectories is carried out using the forward procedure of discrete multi-objective dynamic programming. The simulation of flight trajectories is performed using the special model of controlled aircraft motion. The selection of optimal conflict-free trajectory from the set of Pareto-optimal trajectories is carried out using the convolution of optimality criteria. Within described method, the following procedures have been defined: for prediction of separation minima violations; for aircraft states and controls discretization; for interpolation of trajectories efficiency estimations according to defined optimality criteria. Results: The analysis of the proposed method is performed using computer simulation which results show that computed optimal conflict-free trajectory ensures the conflict avoidance and complies with defined optimality criteria. Discussion: The main advantages of the method are: heading, speed and altitude change maneuvers are used for conflict avoidance; the multi-objective optimization of conflict-free trajectories is applied; the using of dynamic programming enhances the computational efficiency. Proposed method can be used for development of advanced conflict resolution tools for automated air traffic control systems.
Метод багатокритеріального розв’язання конфліктної ситуації між двома повітряними суднами у тривимірному просторі на основі динамічного програмування
2016
Article (Journal)
Electronic Resource
Unknown
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