改进分段式Hermite曲线在虚拟机场中的应用

摘要

In order to effectively use the real data, which has radar, ADS-B and other type, make up the shortcomings. Shortcomings including the transmission time interval, could not drive the movement of objects straight. Using the Hermite curve' continuity, Hermite curve is untlized to control movement of objects. Because of Hermite curves' curvature changes distinctly in some cases, that does not meet the performance of the true objects' motion, the aircraft, vehicles and other objects' moving features are analyzed, and a subsimulation method is brought by inserting the mid-point to sub-control curve shape. The curve of simulating is smooth, continuous and satisfy the characteristics of the movement of objects.%为了在虚拟机场中有效地利用接入的雷达、ADS-B等真实数据,弥补真实数据发送时间间隔大、不能连续驱动物体运动的缺点,利用Hermite曲线的连续性,采用了Hermite曲线控制物体的运动.分析了Hermire曲线在某些情况下曲率变化大、不符合真实物体的运动性能,结合了真实环境中飞机,车辆等物体运动的特点,提出了一种改进的分段模拟的方法,通过插入中间点从而实现了分段控制曲线的形状.实验结果表明,改进后模拟出的曲线平滑、连续,满足物体运动的特征,为虚拟机场中物体平滑,连续运动提供了解决途径.