自动化学报2025，Vol.51Issue(12)：2633-2647,15.DOI:10.16383/j.aas.c250102
基于改进ESO的星间激光通信精跟踪自适应自抗扰控制
Adaptive ADRC for the Fine Tracking System in Inter-satellite Laser Communication Based on Improved ESO
摘要
Abstract
Beam pointing errors in inter-satellite laser communication can significantly degrade the link quality.The fine tracking system,characterized by its high bandwidth,is primarily responsible for real-time correction of high-frequency disturbances.However,traditional active disturbance rejection control(ADRC)exhibits limited per-formance in estimating and compensating high-frequency disturbances in the fine tracking stage.To address this problem,this paper considers a specific form of disturbance,based on this formulation,we construct an improved extended state observer(ESO)with frequency separation capability to decouple slow-varying and fast-varying dis-turbances.Based on the improved ESO,an adaptive ADRC framework incorporating an adaptive filter is proposed.The proposed method enhances the conventional ADRC framework by introducing a parallel adaptive filter,and en-ables adaptive suppression of the beam pointing errors through online weight updating,thereby improving the sys-tem's control performance under high-frequency disturbances.Experimental results demonstrate that the proposed method outperforms conventional control methods in disturbance rejection.关键词
扩张状态观测器/自抗扰控制/自适应滤波/激光通信捕跟技术/激光稳定控制/星间激光通信Key words
Extended state observer/active disturbance rejection control/adaptive filter/laser communication ac-quisition and tracking technology/laser stabilization control/inter-satellite laser communication引用本文复制引用
LI Wei-Peng,LIU Ze-Shu,BAO Ze-Yu,QIAO Jian-Zhong,ZHU Yu-Kai..基于改进ESO的星间激光通信精跟踪自适应自抗扰控制[J].自动化学报,2025,51(12):2633-2647,15.基金项目
国家自然科学基金(62473016),北京市自然科学基金(4232048),动态光学成像与测量全国重点实验室开放课题(2025001)资助 Supported by National Natural Science Foundation of China(62473016),Beijing Natural Science Foundation(4232048),and Open Fund of the State Key Laboratory of Dynamic Optical Imaging and Measurement(2025001) （62473016）
