By using the line of sight (LOS) measurements from space based infrared sensors, free flight phase trajectory estimation problem of ballistic missile is studied.

主要研究空间预警系统利用星载红外传感器的视线测量估计弹道导弹自由飞行段弹道的问题。

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Based on the virtual target point and the ellipse trajectory theory, a new maneuver method in the free - flight phase is presented.

基于虚拟目标点和椭圆弹道理论，提出了一种在自由段机动变轨的新方法。

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