摘要
自由飞行能够解决空中交通拥挤的问题。为确保航空器安全有序运行,需要对自由飞行下的碰撞风险进行研究。从自由飞行空域中航空器冲突解脱出发,为空中相遇的两架航空器建立一个圆形冲突区域,采用绕边界改变航向和按原定航向改变速度大小两种冲突解脱策略,依靠间距、航向、速度三大碰撞风险先决条件,考虑通信导航监视设备、人为因素等导致碰撞的主要风险因素,模拟出航空器定位误差的概率分布,并建立碰撞风险计算模型。算例计算结果表明:在以模型设计的冲突解脱策略下,保证相应目标安全水平的冲突区域半径为8 700m,空域容量能够得到有效优化。
Free flight can solve the problem of air traffic congestion.To ensure the aircraft operating safely and orderly,there is a need to research on the collision risk during free flight.Starting from the aircraft conflict resolution in the free flight airspace,this paper builds a spherical conflict area for two aircrafts encountering each other in the air and takes two strategies for conflict resolution to build the collision risk model,i.e.changing the heading around the area border and changing the velocity along the original heading.Relying on the three antecedent collision conditions including spacing,orientation and velocity,and taking the main collision risk factors into consideration including communication,navigation and surveillance（CNS）and human factors,the paper simulates the probability distribution of aircraft position error,and establishes the collision risk model.The case calculation results show that with the conflict resolution strategy designed by the model,airspace capacity can be optimized effectively if the radius of conflict area remains8 700 min the condition of the target safety level（TSL）.
出处
《安全与环境工程》
CAS
2016年第2期157-161,共5页
Safety and Environmental Engineering
基金
国家自然科学基金项目(71171190)
国家空管委基金项目(GKG201410001)
关键词
航空器
自由飞行
碰撞风险
通信导航监视
冲突解脱
aircraft
free flight
collision risk
communication
navigation and surveillance（CNS）
conflict resolution
