移动式发散型恶劣天气下改航模型和算法研究

针对边界匀速向外发散且整体按一定速度移动的危险天气影响区,考虑高空风对飞机航向的影响,提出了一种新的动态改航模型,包括改航判断模型、两段式改航模型和航迹检查模型。首先,设计了判断是否需要改航及改航侧选择的程序及启发式算法;然后,设计了航迹检查模型以检测航线与动态凸多边形危险区是否有冲突,并通过反复调用启发式算法来消除冲突,使飞行航迹以最小的角度调整获得最短改航航程。仿真结果表明了模型和算法的有效性。

Research on the rerouting model and algorithm under adverse weather with moving and diverging

For the dangerous weather region boundary was diverging outwardly at a constant speed and moving at a certain speed,a new dynamic rerouting model which includes rerouting judgment,two-stage rerouting model and trajectory inspection model was proposed by considering the influence of high-altitude wind.Firstly,the program flow chart and heuristic algorithm were designed to determine whether the aircraft needed to divert route and the selection of rerouting sides.Then,the flight trajectory inspection model and heuristic algorithm were designed to check the flight track and dynamic convex polygon of danger if there was a conflict and eliminate the conflict by using the heuristic algorithm repeatedly,to make flight route adjusting with the minimum angle and obtain the shortest rerouting voyage.Simulation results indicate the availability of the model and algorithm.