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在导弹防御系统中的一个关键性问题,就是预测弹道式再入飞行器的弹道和弹着点。本文将阐述预测方法,以及几个具有代表性例子的数值结果。若干份报告～（[1],[2]）（参考文献附后）阐述了弹道式导弹状态数据的估算;我们将使用这些估算的结果来预测弹道式弹道及弹着点。
A key issue in the missile defense system is to predict the trajectory and impact point of the ballistic reentry vehicle. This article will illustrate the methods of prediction and the numerical results of several representative examples. Several reports ~ ([1], [2]) (references are attached) describe ballistic missile state data estimates; we will use these estimates to predict ballistic trajectory and impact points.