论文部分内容阅读
自由飞行是解决空域拥挤的有效方式,为保证飞行安全,对自由飞行下的碰撞风险进行研究。首先,假设自由飞行下飞机的定位误差服从正态分布,在平面直角坐标系内,建立2架飞机水平投影面和垂直投影面的随机运动学模型;其次,当2架飞机在2个投影面上的相对运动距离同时小于最小安全间隔时认为碰撞发生,据此建立飞行碰撞风险模型,并利用欧拉(Euler)方法求解;最后,通过Matlab对一算例进行计算,得出碰撞风险概率。将计算结果与实际安全目标等级对比,验证该模型的合理性。
Free flight is an effective way to solve the problem of airspace congestion. To ensure the flight safety, the risk of collision under free flight is studied. First of all, assuming that the positioning error of the aircraft under free flight is normal distribution, two stochastic kinematics models of the horizontal plane and the vertical plane of the plane are established in the plane rectangular coordinate system. Secondly, when two planes are on two projection planes Then the collision risk is considered when the relative movement distance is less than the minimum safety interval. Based on this, the risk model of flight collision is established and solved by the Euler method. Finally, a calculation example is given by Matlab to get the probability of collision risk. The calculated results are compared with the actual safety goal level to verify the rationality of the model.