摘要
以所建立的质量矩拦截弹数学模型为基础,利用微分几何的反馈线性化理论,得到一个解耦线性系统,考虑到拦截弹的鲁棒性要求和3个滑块的协调控制问题,提出采用双回路的设计方法,内回路采用线性二次调节器(LQR),外回路采用考虑混合灵敏度问题的H∞控制设计。仿真结果证明了该方法动态性能满足设计要求,同时对系统参数的不确定性具有较强的鲁棒性。
Based on the constructed model of mass moment interception missile, a decoupled linear system is presented by using feedback linearization approach of differential geometry. To meet the demands of the robustness of interception missile and the co-ordination of the three mass control, the double loop method is proposed which consists of inner-loop design using linear quadratic regulator （LQR） and outer-loop H∞ control considering mixed sensitivity problem. It is proved by simulation results that this method can not only meet the demands of the desired performance characteristics but also ensure robust performance when considering system uncertainties.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2007年第3期634-640,共7页
Acta Aeronautica et Astronautica Sinica
基金
国家自然科学基金(60434010)
关键词
飞行器控制
质量矩拦截弹
H∞控制
混合灵敏度问题
反馈线性化
线性二次调节器
flying vehicles control
mass moment interception missile
H∞ control
mixed sensitivity
feedback linearization
linear quadratic regulator
