Study on Trajectory Conflict Resolution Strategies Based on Space-Time Prism
The development of new technologies in the aviation industry has propelled the large advance-ment of trajectory-based fine management,thus underscoring aircraft conflict resolution as a significant topic.This study focuses on building a new method based on Space-Time Prism(STP)to investigate a strategy for resolving trajectory conflicts during aircraft cruising.Next,the proposed method shows that flight speed,time allocation,and start-to-end distance have a notable influence on aircraft trajectories.Then,through an analysis of the aircraft's space-time characteristics and conflict resolution requirements,we propose a new comprehensive strategy,which considers essential constraints like time windows and safety intervals.In addition,the 3D Dijkstra algorithm is used to find the shortest STP path under con-straints,resulting in multiple conflict resolution solutions achieved by adjusting speed and heading.The solutions have different results with different fuel consumptions and airspace utilization.Therefore,when selecting the most appropriate approach,comprehensive consideration of practical interests and control preferences is very important.Last,this research offers some valuable insights for aircraft conflict resolu-tion,contributing to improved efficiency and safety within the aviation transportation system.
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维普
