空间激光通信单探测器复合跟踪控制技术研究  

Research on single-sensor and multiple-axis tracking control system for spatial laser communication

作　　者：张敏[1] 佟首峰[1] 滕云杰 ZHANG Min;TONG Shou-feng;TENG Yun-jie(Institute of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]长春理工大学空间光电技术研究所

出　　处：《激光与红外》2019年第8期983-986,共4页Laser & Infrared

摘　　要：空间激光通信终端伺服系统是一种高精度的跟踪机构,在扰动条件下,通信系统对跟踪系统的稳定性及精度提出了较高的要求。本文主要介绍了激光通信伺服系统的复合跟踪技术,详细论述了单探测器复合跟踪方式的选择以及激光通信伺服系统的控制流程。最后,在振动平台上进行了粗精复合的激光跟踪实验。实验结果显示,当通信终端系统跟踪最大振动加速度为0.22°/s 2的振动平台时,跟踪目标平稳性较好,单独采用粗跟踪时误差为60μrad,采用粗精复合跟踪时位置误差可以达到2μrad。实验结果表明,空间激光通信系统中单探测器复合跟踪技术的设计满足了系统跟踪精度的要求,为激光通信控制系统的设计提供了一定的参考。The servo system of spatial laser communication terminal is a kind of tracking mechanism with high precision.Under the disturbance condition,the communication system has higher requirements on the stability and accuracy of the tracking system.This paper mainly introduces the composite tracking technology of laser communication servo system,discusses the choice of single detector composite tracking mode and the control flow of laser communication servo system in detail.Finally,the laser tracking experiment of coarse and fine tracking was carried out on the vibration platform.Experimental results show that when the communication terminal system track the maximum vibration acceleration of 0.22°/s 2,the tracking stability is better,and the coarse tracking error is 60μrad,and the position tracking error can reach 2μrad when the combination of coarse and fine tracking mode is used.Experimental results also show that the design of single detector compound tracking technology can meet the requirements of system tracking accuracy in the spatial laser communication system,and also provides some reference for the design of laser communication control system.

关 键 词：激光通信 伺服控制 单探测器 复合跟踪 

分 类 号：TN929.1[电子电信—通信与信息系统]