An error-based observer improved by the repetitive control strategy for electro-optical tracking systems  

作　　者：Mai TANG Wenqiang XIA Jiuqiang DENG Yao MAO 

机构地区：[1]National Key Laboratory of Optical Field Manipulation Science and Technology,Chinese Academy of Sciences,Chengdu 610209,China [2]Key Laboratory of Optical Engineering,Chinese Academy of Sciences,Chengdu 610209,China [3]Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China [4]University of Chinese Academy of Sciences,Beijing 101408,China

出　　处：《Frontiers of Information Technology & Electronic Engineering》2025年第3期441-455,共15页信息与电子工程前沿(英文版)

摘　　要：Electro-optical tracking systems have been widely used in the cutting-edge domains of free space environment detection and communication owing to their exceptional performance.However,external disturbances often significantly impact the working accuracy of these systems.As their scope of application continues to broaden,increasingly complex operating conditions introduce more intricate environments and disturbances.This paper introduces a composite control structure of an enhanced error-based observer,rooted in the repetitive control strategy,tailored for two types of complex disturbances:periodic harmonic disturbance and narrow-band peak periodic disturbance.This structure not only ensures the system's stability,but also suppresses periodic disturbances across multiple frequencies,effectively addressing the challenge that current disturbance suppression methods face in mitigating complex periodic disturbances.Moreover,necessary proofs are provided and an experimental platform is established for the electro-optical system,demonstrating the efficacy and reliability of the proposed control methods under various conditions.

关 键 词：Disturbance suppression Error-based observer Repetitive control Electro-optical tracking system Specific frequency point 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]