采用自抗扰控制的空间激光通信精跟踪系统  

Fine tracking system of space laser communication using active disturbance rejection control

作　　者：彭小峰[1] 刘世涛[1] 曹阳[1] 张勋[1] PENG Xiao-feng LIU Shi-tao CAO Yang ZHANG Xun(School of Electronic Information and Automation, Chongqing University of Technology, Chongqing 400054, Chin)

机构地区：[1]重庆理工大学电子信息与自动化学院,重庆400054

出　　处：《激光与红外》2017年第1期19-23,共5页Laser & Infrared

基　　金：重庆教委科学技术研究项目(No.KJ120827;No.KJ1500934)资助

摘　　要：空间激光通信的视轴稳定是激光通信链路建立的前提。针对通信终端载体的非线性扰动和扰动模型未知造成视轴稳态误差较大的问题,设计了自抗扰控制方法,并采用模糊控制理论自适应调整非线性状态误差反馈控制律中的相关参数。实验结果表明,与自适应PID控制方法相比,采用模糊自抗扰控制方法可以有效抑制平台的非线性扰动,并且具有较快的响应速度与较强的鲁棒性,可以满足系统的稳态精度要求。The premise of the laser communication link establishment is the optical axis stabilization for space laser communication. Because the optical axis stabilization error caused by the nonlinear perturbation of the communication terminal carriers and the unknown perturbation model is greater, the active disturbance rejection control method is designed, and related parameters of the nonlinear state error feedback are adaptively adjusted by the fuzzy control method. The experimental results show that, compared with the adaptive PID control method, the fuzzy active disturbance rejection control method can effectively restrain the nonlinear disturbance of the platform, also has better fast response speed and stronger robustness, and it can meet the steady-state accuracy requirements of the system.

关 键 词：空间激光通信 通信终端 视轴稳定 自抗扰控制 模糊理论 

分 类 号：TN929.1[电子电信—通信与信息系统]