基于零控曲面的拦截导引方法

迎面拦截弹道研究在导弹防御系统中具有重要意义。介绍了一种零曲面拦截方法，其目的是首先将拦截器调整到零控曲面，以避免拦截器在末弹道导引中出现过载，影响拦截效果。根据目标和拦截器的实际运动特性对拦截器的动力学和运动学模型进行了简化，并讨论了迎面拦截的末弹道约束条件。仿真结果表明该导引方法能够在初始阶段迅速将拦截器调整到迎面拦截状态，满足拦截的快速性和拦截精度要求。

Interception Guidance Approach Based on Zero-effect State

Research on head-on interception trajectory is very important in missile defense system. The zero-effect state approach is proposed. In this interception approach, the interceptor was firstly adjusted to a zero-effect state trajectory to avoid its overloading at the terminal trajectory. The problem of three-dimensional interception was reduced to a planar problem. The dynamics and kinematics models of the target and interceptor were simplified according to their practical system performance. The head-on interception constrains at terminal trajectory were discussed to optimize the interception trajectory. The simulation results of planar interception show that the guidance law is effective in decreasing terminal overloading, and the interception trajectory meets the requirements of accuracy and rapidity.