侧窗探测的拦截器变结构Bang-Bang姿态控制

Variable Structure Bang-Bang Attitude Control for Space Interception Using Side Window Detection

为了解决拦截器在高速作战时由于气动加热而带来的探测干扰问题，拦截器导引头可采用侧窗探测方式。根据侧窗探测时导引头视场受到侧窗的限制以及需要保持侧窗视线角稳定的要求，在给出了姿态角和视场角的约束关系的基础上，设计了姿态调整算法以保证目标始终在拦截器的视窗内，并根据李亚普诺夫方法设计了拦截器变结构Bang—Bang姿态控制算法来控制拦截器的姿态。根据姿控发动机和拦截运动的数学模型进行了仿真，得到了较好的拦截效果。

The side window detection technology can be adopted to solve the problem of aerodynamic heat induced by high speed. To solve the problem of space interception for side window detection, an algorithm was designed to adjust the attitude of the interceptor to keep the target in the side window all the time based on the mathematical model of the attitude angle and the side window vision scope. A variable structure Bang-Bang control method was proposed in this paper to control the attitude of interceptor, which satisfied the requirement＇of stabilizing the vision angle. Simulation result verifies the effectiveness of the variable structure Bang- Bang control method.