【作者】 王永； 朱竹婷； 张雷； 彭程；

【Author】 WANG Yong~1,ZHU Zhuting~1,ZHANG Lei~2,PENG Cheng~1 1.Department of Automation,University of Science and Technology of China,Hefei 230027,P.R.China 2.96162 unite of PLA,Ganzhou 341000,P.R.China

【机构】 中国科学技术大学自动化系； 中国人民解放军96162部队；

【摘要】 本文以弹性体导弹为研究对象,建立了导弹在俯仰通道中的刚体运动和弹性振动耦合模型.把未来跟踪目标值和传感器在线输出测量值作为控制器的两个输入,将前两阶弹性模态、姿态跟踪误差和控制量引入目标函数,最后将两自由度控制器的设计问题转化到标准离散H_∞优化框架.仿真结果表明,这种两自由度H_∞预见减振跟踪控制器设计方法在很大程度上提高了刚体姿态角的跟踪和减振性能,表现出比一般H_∞控制更好的控制性能.更多还原

【Abstract】 A coupling model of flexible missile containing rigid motion and elastic vibration is derived in the pitch channel in this paper.The coming target tracking values and on-line sensor measurement values form the inputs of the controller,the first two elastic modes,together with attitude tracking error and controlled quantity,are imported into objective function,and then this two-degree-of-freedom controller synthesis problem is translated into a standard discrete H∞optimization frame.The simulation results show the substantial improvement of the two-degree-of-freedom H∞preview control design’s performances both in rigid attitude angle tracking and vibration attenuation,compared with H∞control.更多还原