一种基于单站仅测角观测的弹道射向估计算法

针对单站仅测角条件下的弹道射向估计问题,提出了一种新的基于推力加速度模板的弹道射向估计算法。首先,建立以射向为待估参数的弹道平面切割模型,获得一组备选弹道曲线。其次,通过UKF算法从每条备选弹道曲线中估计出推力加速度曲线。最后,将得到的推力加速度曲线与推力加速度模板进行匹配,进而得到弹道射向估计结果。仿真结果验证了该算法的有效性。

A ballistic heading estimation method based on single station only angle measurement

Aiming at the ballistic heading estimation problem under the condition of single station only angle measurement,a new trajectory estimation algorithm based on thrust acceleration profile is proposed.Firstly,a trajectory plane cutting model which takes the trajectory heading as the estimation parameter is established,so as to obtain a set of candidate ballistic curve.Secondly,the thrust acceleration curve can be estimated from each candidate ballistic curve by the UKF algorithm.Finally,to compare the estimation of the thrust acceleration curve with the thrust acceleration profile,the estimation of the trajectory heading is obtained.The algorithm is verified by means of simulation results.