末段高空区域防御系统跟踪算法研究

摘要

以美国末段高空区域防御系统为研究对象，首先分别对弹道导弹处于大气层内和大气层外两种不同受力情况的末段轨迹进行仿真建模。针对两个阶段的各自特点，对处于大气层外导弹飞行中段仅受重力作用的目标，采用基于 Singer 模型的目标跟踪算法。对再入大气层后的再入类目标，为解决当前目标跟踪算法中机动模型与再入类目标实际运动不匹配的问题，采用了基于弹道模型的目标跟踪算法。仿真结果表明，两种算法可以分别较好地满足跟踪导弹的两个阶段。%Making the THAAD system as the research object,the terminal trajectory of ballistic missile in or outside the atmosphere are simulated and modeled respectively.A target tracking algorithm based on singer model is adopted to analyze the target which only is affected by the gravity outside the atmosphere. And a target tracking algorithm based on the model of ballistic missile is used to solve the problem of mis-matching between the maneuvering model in target tracking algorithm and the actual movement of the re-en-try target.The simulation result shows that the two algorithms can track the missile at the two stages re-spectively.