飞行仿真转台控制器性能评价研究  

Performance Assessment of Flight Simulator Servo System Controller

作　　者：刘慧博[1] 吴浩[1] 

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010

出　　处：《计算机仿真》2016年第2期69-72,110,共5页Computer Simulation

基　　金：内蒙古自治区自然科学基金项目(2014MS0611)

摘　　要：飞行仿真转台是一种在航空航天领域有着重要应用的半实物仿真设备,提高控制的精度和平稳性,对飞行仿真转台性能评价的研究就显得尤为重要。传统对转台控制的研究主要侧重于动态输出跟踪特性,没有综合考虑输入方差特性及经济性能等综合性能。提出采用二次线性高斯(Linear Quadratic Gaussian,LQG)性能基准,对高精度转台模型在三种不同控制器下进行性能评价分析,综合考虑输入输出对控制器的影响。通过对转台控制器输入输出数据的处理,采用线性拟合的方法求解出LQG性能权衡曲线,将控制器的实际性能与最优控制性能进行仿真,结果表明,控制器的控制性能指标和潜力性能指标达到要求。Flight simulator is semi physical simulation equipment,making an important application in the field of aerospace. It requires the high control precision and stability. The assessment performance of Simulator Servo System is very important. The traditional researches on turntable control performance index is most on dynamic output tracking features and have few considered on input variance characteristics and effects. According to Linear Quadratic Gaussian（ LQG） performance benchmarks,the performances of high precision flight simulator servo system in three kinds of controllers are analyzed,and the input and output effects on the controllers are considered. Through the input and output data processing,the linear fitting method is used to solve the LQG performance tradeoff curve,and the controller＇s actual performance is compared with the optimal performance. Finally the controller＇s control performance index and the potential performance are obtained.

关 键 词：仿真转台 性能评价 潜力性能指标 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]