飞行冲突下改航模型和算法研究  

Research on model and algorithm of diversion under flight conflict

作　　者：王莉莉[1] 周娟[1] 

机构地区：[1]中国民航大学天津市空管运行规划与安全技术重点实验室,天津300300

出　　处：《飞行力学》2015年第3期284-288,共5页Flight Dynamics

基　　金：国家自然科学基金委员会与中国民用航空局联合资助(61179042);中央高校基本科研业务费资助(ZXH2012L005)

摘　　要：为解决飞行冲突下的改航问题,将不具备优先权的飞机看成是沿预定航路动态移动的威胁体,其保护区即看作该威胁体的威胁区域,建立改进的威胁概率模型——两机冲突概率模型,以确定其临界圆。在考虑改航偏离预定航路飞行代价的基础上,建立了改进的改航模型。针对三种飞行冲突分别给出了相应的改航最优路径规划分析。基于最短航程设计了相应的启发式算法,并对两种场景进行算例仿真。仿真结果表明,该模型和算法是有效可行的,可以很好地处理这类改航问题,为飞行冲突下的飞机规划出相对安全经济的改航路径,以及时解脱飞行冲突。To solve the problem of diversion under flight conflict, the plane which did not have priority was regarded as a threat body dynamically moving along the scheduled route. The plane＇ s protection zone was seen as the threat area of the threat body. An improving threat probability model, that is to say, the two planes＇ conflict probability model was set up to determine the critical circle. Considering the flight cost brought from diverting away from the planned route, improved diverting model was established. The corresponding optimal path planning analysis of diversion was given respectively for the three flight conflicts. The corresponding heuristic algorithm was designed based on the shortest distance to simulate ex- amples in two scenarios. Simulation results show that the model and algorithm is effective and feasible. It can be a very good method to deal with this kind of diverting problem and can plan a relatively safe and e- conomic diverting path for the aircraft under flight conflict to release from flight conflict in time.

关 键 词：飞行冲突 改航 威胁体 冲突概率 启发式算法 

分 类 号：V355[航空宇航科学与技术—人机与环境工程]