无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2012年
12期
33-35,54
,共4页
天线驱动模型%系统辨识%卡尔曼最优估计%LQG控制器%性能分析
天線驅動模型%繫統辨識%卡爾曼最優估計%LQG控製器%性能分析
천선구동모형%계통변식%잡이만최우고계%LQG공제기%성능분석
antenna drive model%system identification%Kalman fiher%LQG optimal controller%performance analysis
针对深空大天线阵风扰动引起天线指向不准、接收信号抖动等问题，提出了基于最优控制策略的天线抗风扰LQG控制器设计方案。从控制对象建模、线性二次型最优控制和卡尔曼最优估计等方面详尽阐述了LQG最优控制器设计。借鉴国外DSN（深空网）相关工程经验与MATLAB工具对LQG控制器性能做了仿真分析。对LQG工程设计值得注意的问题进行了简要说明，目的旨在分析与解决相关工程技术问题，提高天线指向控制精度。
針對深空大天線陣風擾動引起天線指嚮不準、接收信號抖動等問題，提齣瞭基于最優控製策略的天線抗風擾LQG控製器設計方案。從控製對象建模、線性二次型最優控製和卡爾曼最優估計等方麵詳儘闡述瞭LQG最優控製器設計。藉鑒國外DSN（深空網）相關工程經驗與MATLAB工具對LQG控製器性能做瞭倣真分析。對LQG工程設計值得註意的問題進行瞭簡要說明，目的旨在分析與解決相關工程技術問題，提高天線指嚮控製精度。
침대심공대천선진풍우동인기천선지향불준、접수신호두동등문제，제출료기우최우공제책략적천선항풍우LQG공제기설계방안。종공제대상건모、선성이차형최우공제화잡이만최우고계등방면상진천술료LQG최우공제기설계。차감국외DSN（심공망）상관공정경험여MATLAB공구대LQG공제기성능주료방진분석。대LQG공정설계치득주의적문제진행료간요설명，목적지재분석여해결상관공정기술문제，제고천선지향공제정도。
The inaccuracy of deep space antenna pointing due to gust disturbances may lead to the jitter of received signals. An antenna LQG controller with wind disturbance resistance based on optimal control strategy is proposed in the paper. Firstly,the design of the LQG controller is described in detail in terms of control object modeling,linear quadratic optimal control and Kalman optimal esti- mation. Secondly, using the related engineering experience of foreign DSNs as reference and also with the help of MATLAB,a simulation analysis of the controller performance is made. Lastly,a brief description of the key issues of the LQG engineering design is given. The purpose is to solve relevant engineering problems and improve the control accuracy of antenna pointing.
