基于最优空间转动矢量的升力式再入飞行器单通道姿态控制器设计

摘要

In order to solve the problem of violent coupling effect of lift-body reentry vehicle three-channel attitude motion caused by hypersonic flying, the concept of optimal spatial rotation vector is developed, inner-outer double-loop control mode is adopted, and a novel control method is designed. Such method transforms the normal three-channel attitude control problem to a spatial single channel. It is demonstrated that the single channel attitude controller successfully accomplishes tracking by choosing appropriate parameters.%针对升力式再入飞行器高超声速飞行时姿态运动各通道间强烈耦合效应,提出最优空间转动矢量概念.采用内外环双回路控制方式,设计了一种新式控制方法.将一般三通道姿态控制问题转化成为空间单通道控制问题.选取合适的控制系统参数,通过六自由度仿真,验证了所设计的单通道姿态控制器能够实现对飞行器姿态角的跟踪.