摘要
弹道导弹由于其沿着固定的弹道飞行而容易被拦截,突防技术的发展是提高弹道导弹生存能力的重要手段之一。根据弹道导弹的飞行特点,提出了基于脉冲发动机的脉冲点火轴向加速的被动段机动变轨突防方法。给出了限制脉冲点火的约束方程,并给出了基于泰勒展开的约束方程求解方法。利用这个方法设计出来的弹道是由几条不同的椭圆孤段组成,这种弹道不同于经典弹道和其它弹头机动弹道。给出了两个仿真实例。仿真结果显示,用本文方法设计出来弹头机动弹道具有好的突防效果,这说明所提出弹头机动弹道设计方法是可行的。
The ballistic missile is easily intercepted by enemy because it moves along the fixed trajectory, and it is important for us to develop anti-defense. According to the characteristic of flying of the ballistic missile, this paper presents a method that a ballistic missile penetrates the anti-missile system, which is based on the increasing velocity along its original velocity direction by the impulse firing. The constraint equations of restricted the impulse firing are found and the method of solving it is described. The trajectory designed by the method consists of several ellipse curves, which is different from the classical trajectory and the trajectory of the missile maneuvers designed by other method. Two examples of the numerical stimulation are given, the results show that the trajectory of the missile maneuvers designed by the method can improved the capacity to penetrate the anti-missile system, which implies the method in this paper is feasible.
出处
《宇航学报》
EI
CSCD
北大核心
2008年第4期1126-1130,1136,共6页
Journal of Astronautics
关键词
弹道导弹
被动段突防
脉冲点火
轴向加速
变轨
Ballistic missile
Penetrating the anti-missile system in passive ballistic curve
Impulse firing
Increasing velocity along its original velocity direction
Trajectory transfer
