空间光通信组网主光端机精跟踪控制技术研究  

Research on fine tracking control technology of main optical transceiver in space optical communication network

作　　者：范涛 张立中[2] 孟立新[1,2] 白杨杨[1,2] 张暾 张凯强 FAN Tao;ZHANG Lizhong;BAI Yangyang;MENG Lixin;ZHANG Tun;ZHANG Kaiqiang(College of Mechatronic Engineering,Changchun University of Science and Technology,Changchun 130022,China;Fundamental Science on Space-Ground Laser Communication Technology Laboratory,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]长春理工大学机电工程学院,长春130022 [2]长春理工大学空地激光通信国防重点实验室,长春130022

出　　处：《激光杂志》2021年第11期112-117,共6页Laser Journal

基　　金：吉林省教育厅科学技术研究项目(No.JJKH20210836KJ)。

摘　　要：空间光通信组网的视轴稳定跟踪是建立通信链路的前提,为提高激光通信可靠性,对激光通信组网主光端机精跟踪控制技术进行研究。首先,阐述组网“一对四”主光端机系统原理,针对主光端机存在的粗跟踪残差以及内外部的非线性扰动问题,设计模糊自抗扰控制方法,改进非线性误差反馈率,自适应调整参数,不断修正当前的控制信号。搭建传统PID、自抗扰以及模糊自抗扰三种控制仿真模型,结果表明:在50μrad-25 Hz正弦扰动以及施加白噪声下,其均方根值误差达到1.43,与PID以及自抗扰控制方法相比较,跟踪精度提高75%和64%,满足空间光通信组网系统对响应速度、跟踪精度的要求。The stable tracking of the visual axis of the space optical communication network is the premise for the establishment of the communication link.This paper conducts the research on the precision tracking control technology of the main optical terminal of the laser communication network to improve the reliability of the laser communication.Firstly,the principle of networking"One to four"main optical transceiver system is described.Aiming at the coarse tracking residual and internal and external nonlinear disturbance problems of the main optical transceiver,the fuzzy auto disturbance rejection control method is designed to improve the nonlinear error feedback rate,adaptively adjust the parameters,and constantly correct the current control signal.Three control simulation models of traditional PID,auto disturbance rejection and fuzzy auto disturbance rejection are built,and the results show that under 50μrad-25 Hz sine disturbance and white noise,the root mean square error reaches 1.43 urad.Compared with PID and active disturbance rejection control method,the tracking accuracy is improved by 75%and 64%,which meets the requirements of the space optical communication networking system for response speed and tracking accuracy.

关 键 词：激光通信组网 精跟踪 主光端机 模糊自抗扰 

分 类 号：TN929.1[电子电信—通信与信息系统]