高速再入飞行器的鲁棒自动驾驶仪设计  

Robust autopilot design of high-speed reentry aircrafts

作　　者：段广仁[1] 谭峰[1] 梁冰[1] 

机构地区：[1]哈尔滨工业大学控制理论与制导技术研究中心,黑龙江哈尔滨150001

出　　处：《系统工程与电子技术》2007年第11期1908-1911,共4页Systems Engineering and Electronics

基　　金：国家自然科学基金(60474015);长江学者和创新团队发展计划资助课题

摘　　要：针对高速再入飞行器的自动驾驶仪设计问题,基于鲁棒参数化方法,采用特征结构配置和模型参考跟踪理论设计BTT飞行器姿态控制系统的鲁棒控制器,完成对于制导信号的快速跟踪。本设计的鲁棒镇定器是一个不随滚动角速度变化也无需切换的定常反馈镇定律,结构简单,便于工程实现。通过分析高速再入飞行器的特点,给出了简单可行的控制方案。将所设计的控制器应用于飞行器非线性模型进行了六自由度仿真试验。仿真时考虑了系统执行机构的时滞和饱和特性。仿真结果验证了所设计的控制器的有效性。The autopilot design problem of a high-speed reentry aircraft is considered. The eigenstructure assignment approach based on the robust parameterized method is employed and feed forward compensators are designed based on the model reference theory to realize tracking of the overload signals. In order to simplify the autopilot system, a constant non-switching feedback controller, which stabilizes the system on the whole trajectory and doesn＇t vary with the rolling rate, is proposed. According to the specific features of the high-speed reentry aircraft, a simple and feasible control strategy is proposed. To validate the performance of the autopilot system, six degrees of freedom simulations are carried out. Particularly, the time delay behavior and saturation characteristic of the actuators are taken into consideration. The simulation results show the effectiveness of the method.

关 键 词：高速再入飞行器 鲁棒参数化方法 自动驾驶仪 六自由度 

分 类 号：V448.32[航空宇航科学与技术—飞行器设计]