为了提高需要速度的求解精度,解决当前飞行状态和目标位置不定情况下需要速度的求解问题,文中提出了一种基于落点的需要速度求解方法。在惯性坐标系下,建立了需要速度的求解模型,对目标点与弹道导弹绝对弹道面之间的纵横向偏差进行修正,计算导弹当前飞行状态下的需要速度。仿真结果证明,该方法可有效求解空中某飞行状态下导弹的需要速度,精度较高,打击目标可以适当变换。

In order to improve the solution accuracy of required velocity and solve the required velocity under the condition that the flight status and target location were uncertain, in this paper, a method based on point of fall for required velocity calculation was presented. In inertial coordinate system, the solving model of required velocity was established, the vertical and horizontal deviations between the object point and the absolute ballistic plane of ballistic missile were revised and the required velocity in current flight state was calculated. The simulation results indicated that this method could effectively solve the required velocity of missile in a certain fligh state with higher accuracy, and the targets could be changed properly.