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在研究拦截导弹质心运动特点以及考虑一些实际因素的情况下 ,建立了一种拦截导弹系统的二维简化运动模型 ,并给出了该模型的状态方程一般表达式。根据这一状态方程的表达形式 ,应用非线性系统的直接反馈线性化 (DFL)理论 ,得出了一个导弹加速度的线性补偿律 ,并根据该线性补偿律和 PN导引律 ,设计出了一种基于 I/ O描述和 PN导引律综合应用的变结构控制律。本文的末尾给出了应用该综合控制律的一些仿真结果 ,这些仿真结果表明 :该控制律是拦截导弹导引的一种有效处理方法 ,所设计的系统具有良好的跟踪性能 ,具有一定的研究应用前景
Based on the study of the characteristics of intercepting missiles’ centroid movement and taking some practical factors into consideration, a two-dimensional simplified motion model of interceptor missile system is established and the general expression of state equation of the model is given. According to the expression of the state equation, a linear compensation law of missile acceleration is obtained by applying the direct feedback linearization (DFL) theory of nonlinear system. According to the linear compensation law and the PN guidance law, a Variable Structure Control Law Based on I / O Description and Comprehensive Application of PN Guidance Law. At the end of this paper, some simulation results of the integrated control law are given. The simulation results show that the proposed control law is an effective method to intercept missile guidance. The designed system has good tracking performance and some researches Application prospects