ADS-B信息的球状模型飞行冲突探测算法

Flight collision detection algorithm based on ADS-B information spherical model

随着空中飞行流量日趋增大,飞行器自由飞行过程中发生碰撞的可能性也越来越大,针对飞行器周围空域进行合理划分,给出了一种基于ADS-B信息的球状模型飞行冲突探测算法。该算法结合ADS-B的原理和特点,运用球状模型取代圆柱体模型对飞行器周围空域进行建模,然后进行冲突目标初选,对可能发生冲突飞行器的位置、航迹交叉点、距离进行计算并预估到达时间,与门限值比较判断能否发生碰撞,最后,对算法进行仿真。结果验证:算法能够更准确并且快速地完成冲突探测,并对驾驶员发出冲突告警,对防止飞行冲突的发生具有积极作用。

With the increasing flight flow of aircraft,the probability of collision during free flying is becoming larger. A collision detection algorithm based onADS-B spherical model is put forward via reasonably divide surrounding area of aircraft. Combine with the theory and feature of ADS-B,this method establishes spherical model instead of cylindrical model,then implement the pre-selecting of collision objects,calculate the possible collision position,track-crossing point and distance. It estimates the arriving time and compare with threshold value to detect whether a collision can happen. Simulation result shows this algorithm can realize collision detection more quickly and accurately,which can be advantageous to avoid flight collision by sending collision alert to the pilot.