2020年第3期
视野图
SPACE ELECTRONIC TECHNOLOGY73
发展方向综述°
蜂窝不粘锅夏方园、陈祥，陈安和，刘佳妮，冯向兵，郑少林，刘宗伟
(中国空间技术研究院西安分院，西安7i_)
摘要：针对微小卫星星间数传发展对载荷传输速率要求更快，平台体积重量和功耗约束更高的趋势，小型化 激光通信终端是最优解决方案。文章介绍了激光通信系统常见组成、波长体制和终端构型，深入分析了美国、欧洲
和曰本等国外典型星载小型化激光通信终端技术发展现状，并介绍了星载小型化激光通信终端的应用前景。最后 得出星载小型化激光通信技术的未来研究方向：一方面是激光终端的小型化、一体化和模块化
的设计与实现，一方 面是初始指向技术的研究。未来急需发展网络拓扑简单可靠，业务类型多样，传输手段灵活的激光集成通信网络, 星载激光通信终端技术需具备组件可集成、功能可重构的功能。
关键词：自由空间激光通信；微纳卫星；发展现状；综述
中图分类号:V474 文献标识码:A 文章编号:1674-7135(2020)03^0073^08
网络聚会D O I：10.3969/j.issn. 1674-7135.2020.03.013
Spaceborne Miniaturized Laser Communication Terminals
Current Situation and Development Trend
XIA Fangyuan* ,CHEN Xiang,CHEN Anhe.LIU Jiani,FENG Xiangbing,ZHENG Shaolin.LIU Zongwei (China Academy of Space Technology (Xi^n) ,Xi^n 710000,China)
跨越障碍物
Abstract：The miniaturized laser communication terminal is the optimal solution for the development of microsatellite inter-satellite data transmission with faster load transmission rate,higher platform volume and power consumption constraints. This paper introduces the common composition, wavelength system and terminal configuration for laser communication system ,and deeply analyzes
电厂脱硫滤布the development status of typical miniaturized laser communication terminal technology in the United States,Europe and Japan,and introduces the application prospects of miniaturized laser communication terminal. Finally, the future research direction of space-borne miniaturized laser communication technology is drawn：on the one hand,the miniaturization ,integration and modular design and implementation of laser terminals, on the one hand, the research of initial pointing technology. In the future, it is urgent to develop a laser integrated communication network with simple and reliable network topology, various service types and flexible transmission means. Satellite-bome laser communication terminal technology should have the functions of component integration and functional reconfiguration.
K e y w o rds：Free-space laser communication ； Micro-nano satellites ； Current development situations ； Review.
〇引言
星间数传的发展趋势是要实现更高码速率的传 输，卫星通信载荷也需要适用于空间平台的轻小型化和低能耗的要求，自由空间激光通信是能够满足 这些要求的最优通信手段之一[1]。自由空间光通信 相对于微波通信具有明显的优点：带宽大、抗电磁干 扰和抗截获[2’3]。随着卫星激光通信技术成熟度的
①收稿日期:2019>06>06；修回日期:2019-07-03。
作者筒介：夏方园（1987—），工学博士，目前主要从事空间激光通信系统设计工作。E-mail:xfy8722@ qq.c o m
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