摘要
无线光通信是指以光波作为载体在自由空间中传递信息的技术,具有带宽高、成本低和安全性高等优点。捕获、瞄准和跟踪(acquisition,pointing and tracking,APT)系统是建立无线光通信系统的前提,简单、可靠、动态性能好的APT系统可以克服由机械平台震动及外界环境变化对无线光通信系统的影响。因此,需要对APT系统进行较为深入的理论和实验研究,从而设计出一种适合无线光通信的捕获、瞄准和跟踪方法。本文分析了国内外在捕获、瞄准、跟踪方面的研究成果,同时介绍了西安理工大学在自动瞄准方面所做的工作,主要包括初始捕获系统、非共视轴控制系统、光束检测系统等方面的进展,以及1.3 km、5.2 km、10.2 km、100 km距离链路的外场实验,验证了APT系统的有效性。最后展望了无线光通信中APT的发展。
Optical wireless communication refers to the technology of transmitting information in free space using light waves as a carrier,which has the advantages of high bandwidth,low cost,and high security.The acquisition,pointing,and tracking(APT)system is the premise of establishing a wireless optical communication system.A simple,reliable,and dynamic APT system can overcome the impact of mechanical platform vibration and external environment changes on the wireless optical communication system.Therefore,it is necessary to conduct in-depth theoretical and experimental research on the APT system,so as to design a capture,aiming,and tracking method suitable for wireless optical communication.This paper analyzes the domestic and foreign research achievements in capturing,aiming,and tracking,and introduces the work done by Xi'an University of Technology in the field of automatic aiming.It mainly includes the progress of initial acquisition system,non-common visual axis control system,beam detection system,etc.At the same time,the field experiments of 1.3 km,5.2 km,10.2 km,and 100 km distance links are introduced to verify the effectiveness of the APT system.Finally,the development of APT in wireless optical communication is prospected.
作者
梁静远
陈瑞东
姚海峰
白勃
曹明华
赵黎
王怡
邓佳新
Liang Jingyuan;Chen Ruidong;Yao Haifeng;Bai Bo;Cao Minghua;Zhao Li;Wang Yi;Deng Jiaxin(School of Automation and Information Engineering,Xi'an University of Technology,Xi'an,Shaanxi 710048,China;The School of Electro-Optical Engineering,Changchun University of Science and Technology,Changchun,Jilin 130013,China;College of Information Engineering,China Jiliang University,Hangzhou,Zhejiang 310018,China;School of Computer and Communication,Lanzhou University of Technology,Lanzhou,Gansu 730050,China;Electronic Information Engineering,Xi'an Technology University,Xi'an,Shaanxi 710021,China;School of Telecommunications Engineering,Xidian University,Xi'an,Shaanxi 710119,China)
出处
《光电工程》
CAS
CSCD
北大核心
2022年第8期23-45,共23页
Opto-Electronic Engineering
基金
西安市科技创新引导项目(201805030YD8CG14(12))
陕西省重点产业创新项目(2017ZDCXL-GY-06-01)。
关键词
无线光通信
捕获、瞄准和跟踪
光束检测
非共视轴控制
optical wireless communication
acquisition pointing and tracking
beam detection
non-common visual axis control
