自寻的反坦克导弹击顶方案及其制导律

本文提出了自寻的反坦克导弹的击顶控制方案、理想弹道参数的选取原则,并建立了导弹-目标相对运动方程。采用基于状态方程的预测控制算法求取了击顶最优制导律,并根据导弹特点,将控制对象分解为3个子系统,从而大大减少了所需内存贮量和实时计算量。与采用经典最优控制方法提出的自寻的导弹击顶方案及控制器比较,本文采用与实际较接近的空间模型作为控制对象,该方案允许导弹末制导初态有较大散布,不必估算剩余飞行时间。仿真表明,该方案对风、推力偏心、气动力参数干扰等具有较强的抗干扰能力,因此是一个较好的击顶方案。

A TOP-ATTACK SCHEME FOR A HOMING ANTI-TANK MISSILE AND ITS LAWS OF GUIDANCE

In this paper, a top-attack scheme of a homing anti-tank missile and the principle of selecting the parameters of ideal trajectory are proposed. Equations of relative motion of the missile with respect to the tank are established. A top-attack guidance law is extracted by using predictive control method based on the state equation. According to the characteristics of the missile, the controled system is decomposed into three subsystems. The on-line computation time and computer storage capacity are thereby greatly reduced. Compared with schemes using the classic optimal control method, this scheme is a better option in many respects, such as using space model as the controled object, allowing the initial tate to have a wide distribution, having no need for (?) estimation, and possessing anti-interference ability.