一种基于导航坐标系的巡飞弹航迹跟踪方法

A Trajectory Tracking Approach Based on Navigation Coordinates for Loitering Munition

针对巡飞弹定高巡飞航迹跟踪的问题,提出了一种基于导航坐标系的航迹跟踪方法。将整条航路分为直线飞行和转弯飞行阶段,建立动态导航坐标系,分别利用直线控制策略和转弯控制策略,将航迹跟踪简化为在导航坐标系下修正横向侧偏距偏差的问题,省略航向角偏差控制,确保巡飞弹在飞行过程中沿着理想航线飞行。通过仿真证明,此方法使得巡飞弹实际飞行航迹偏离理想航迹的误差很小,达到良好的跟踪效果。

To solve the problem of trajectory tracking for loitering munition at constant height, a trajectory tracking approach based on navi-gation coordinates for loitering munition was put forward. Based on navigation coordinate, omitting azimuth deviation control, two different control strategies were applied to correct lateral deviation in order to ensure the loitering munition flying along ideal trajectory after the whole trajectory was divided into straight line stage and wheeling stage. The simulation result shows that the approach can make sure that during munition flying, the error of deviation from ideal track is quite small and the tacking effect is good.