摘要
针对再入飞行器滚动通道产生较大的滚动角及滚动角速率,给出了一种能够有效地减小滚动角和滚动角速率的方法。该方法引入滚动角加速度信号反馈,并采用逆系统方法设计控制器。数学仿真结果表明,引入角加速度信号后,通过对干扰力矩的补偿,可以很大程度上减小再入飞行器的滚动角和滚动角速率,滚动角可以稳定在±5°范围以内。该方法将有利于减弱通道之间的耦合,提高再入飞行器再入段控制的精度。
This paper gives the method that is effective in decreasing the roll angle and roll rate in roll channel of the reentry vehicle. The emphases are the angular acceleration feedback and the design of the controller based on the method of inverse system. The simulations indicate that with the added angular acceleration in roll , the roll angle and the roll rate in reentry phase of the reentry vehicle can be decreased evidently by compensating disturbing moment. The roll angle is stabilized within ±5°. The method is effective in weakening the coupling among the channels and improving the precision of the reentry control.
出处
《航天控制》
CSCD
北大核心
2006年第4期8-12,共5页
Aerospace Control
关键词
角加速度反馈
再入段
滚动
逆系统
干扰补偿
Angular acceleration feedback Reentry phase Roll Inverse system Disturbance compensation
