摘要
为提升二维指向机构的跟踪性能并确保其有效带宽达到设计要求,基于经典三环控制理论,设计了一套采用校正网络-PID复合控制的指向机构控制系统,并通过实验测定了系统的跟踪有效带宽。首先详细阐述了二维指向机构的执行单元结构和驱动控制逻辑,进而建立了系统数学模型并分析了控制原理,通过仿真计算获得了系统关键性能参数。在实验验证部分,系统介绍了测试平台搭建方案与测试方法。测试结果表明:基于校正网络优化的PID控制系统实现了0.3″级的高精度定点控制,图像闭环控制带宽显著提升至2.5Hz以上,系统整体性能满足设计要求。
To improve the tracking performance and ensure the designed effective bandwidth of a two-dimensional pointing mechanism,a composite control system integrating correction network and proportional-integral-differential(PID)is developed based on classical three-loop control theory,with its effective tracking bandwidth experimentally validated.At first,the actuator configuration and driving control logic of the pointing mechanism are elaborated on,and then,the system mathematical model is established and the control principle is analyzed,obtaining key performance parameters through simulation.In the experimental section,the testing platform configuration and methodology are introduced.Testing results demonstrate that the correction network-optimized PID control achieves high-precision fixed-point control within O.3″and significantly enhances the image closed-loop control bandwidth beyond 2.5 Hz,meeting all design specifications.
作者
金玳冉
吕福睿
陈宝刚
刘永凯
JIN Dairan;LYU Furui;CHEN Baogang;LIU Yongkai(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun,China;University of Chinese Academy of Sciences,Beijing,China)
出处
《光电技术应用》
2025年第3期45-51,共7页
Electro-Optic Technology Application
关键词
图像跟踪
PID
带宽测试
扰动抑制
伺服控制
image tracking
proportional-integral-differential(PID)
bandwidth testing
disturbance suppression
servo control
