空间激光通信粗跟踪等效复合控制技术  

Coarse Tracking Equivalent Compound Control Technology for Space Laser Communication

作　　者：胡一博 孟立新[1,2] 白杨杨[1,2] 张立中[1,2] 姜兴 郑国和 刘智[2] Hu Yibo;Meng Lixin;Bai Yangyang;Zhang Lizhong;Jiang Xing;Zheng Guohe;Liu Zhi(College of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Changchun 130022,Jilin,China;National Defense Key Laboratory of Air Ground Laser Communication,Changchun University of Science and Technology,Changchun 130022,Jilin,China)

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

出　　处：《激光与光电子学进展》2023年第9期180-190,共11页Laser & Optoelectronics Progress

基　　金：国家自然科学联合基金项目“叶企孙”科学基金(U2141231)、吉林省教育厅科学技术研究项目(JJKH20210836KJ)。

摘　　要：在激光通信光端机伺服控制中,基于速度、加速度滞后补偿的等效复合控制技术能够大幅提高光端机的跟瞄精度,同时对系统稳定性影响较小。本文首先建立了卫星激光通信光端机双向跟瞄模型,分析了光端机工作扰动来源,解算出运动和扰动的等效正弦信号,在速度、位置双回路闭环控制的基础上,开展了等效复合控制技术研究;通过对控制参数进行基于方差的敏感度分析,完成了速度、加速度滞后补偿参数的优化设计;最后在室内构建了实验系统,完成了仿真分析和实验验证。实验结果表明,采用等效复合控制后,在双端运动状态下,跟踪误差为56.8μrad,误差减小了80.06%,大幅提高了光端机粗跟踪动态的跟踪精度。In the servomechanism control of laser communication optical transceivers,the equivalent compound control technology based on speed and acceleration lag compensation greatly improves the tracking as well as aiming accuracy of the optical transceiver while having little impact on the system stability.First,this study establishes the twoway tracking and aiming model for the satellite laser communication terminal,and thereafter analyzes the source of working disturbance on the optical terminal leading to solve the equivalent sinusoidal signal of motion and disturbance.Based on the doubleloop closedloop control of speed and position,the study of equivalent compound control technology is carried out.Through the variancebased sensitivity analysis of control parameters,the optimal design of speed and acceleration lag compensation parameters is completed.Finally,a motion simulation experiment is performed indoors for simulation analysis and experimental verification.The results show that after adopting the equivalent compound control,the tracking accuracy is 56.8μrad in the state of doubleend motion and the accuracy error is reduced by 80.06%.This suggests that the equivalent compound control technology can greatly improve the dynamic tracking accuracy of rough tracking of the optical transceiver.

关 键 词：光通信 卫星激光通信 等效复合控制 参数优化 敏感度分析 

分 类 号：TN929.1[电子电信—通信与信息系统]