主动段弹道跟踪与关机点估计算法研究

An Algorithm for Tracking Ballistic Target in Boost Phase and Estimating Burnout Time

弹道导弹主动段跟踪是反导防御体系中极其重要的部分,也是制导拦截的关键一环。针对传统跟踪方法在弹道导弹主动段跟踪性能的不足,提出了一种新的变结构多模型主动段跟踪方法。它具有以下的优势:针对主动段运动模型的不确定性,采用可变结构多模型设计,适用于跟踪含多级助推段的导弹目标;采用不敏非线性滤波方法具有更好的跟踪精度。仿真实验中设计了两个实验场景,与传统方法相比较该方法明显地提高了跟踪的精度,同时可以估计出导弹助推段关机点的时刻。

For anti-missile defense system,tracking ballistic missile in boost phase is an extremely important task,and also is a key element of guided interception.In respect that the traditional methods have essential deficiency on the tracking of ballistic missile in boost phase,a new variable-structure multi-model tracking algorithm is proposed.It has the following advantages：as for the uncertainty of missile model,the multi-model algorithm is more suitable for tracking the missile targets with multiple boost stages;the UKF non-linear filtering method has better tracking accuracy.Simulation experiments assume two scenarios.Compared with the conventional methods it significantly improves the tracking accuracy,and can estimate the burnout time of the missile.