基于骨架提取的飞行器航迹实时重规划法

Aircraft track real-time replanning method based on skeleton extraction

随着低空防御系统的不断完善,飞行器成功突防的安全性越来越低。该文旨在解决动态航迹规划问题。首先根据飞行器自身飞行约束条件和高程数字地图信息,利用地形特征,将相对平坦的山谷地形提取出来,建立骨架,作为航迹规划的参考。然后,根据航迹策略,飞行器在地面起飞前通过寻路算法快速制定一条可飞的航迹,在空中作战遇到突发威胁时,也能够快速重规划出一条可飞航迹。仿真实验结果证明了该算法费时短并且实时性高。

With the continuous improvement of the low-altitude defense system,the security of successful aircraft penetration is becoming lower and lower.Therefore,the dynamic track planning problem is addressed in this paper.According to the flight constraint condition of the aircraft and the information of the elevation digital map,the relatively flat valley terrain is extracted based on the terrain feature,so as to establish the skeleton as a reference for the flight track planning.According to the track strategy,a flyable track is rapidly determined before the aircraft takes off from the ground by using the pathfinding algorithm,and the flyable track can be quickly replanned when the aircraft encounters an unexpected threat during the air combat.The results of the simulation experiment show that the algorithm has short time-consumption and high real-time performance.