卫星相干激光通信系统与技术发展  

Satellite Coherent Laser Communication:System and Technical Progress

作　　者：叶紫晴 丁宸聪 周海军 YE Ziqing;DING Chencong;ZHOU Haijun(Naval Research Institute,Shanghai 200436,China;Southwest China Institute of Electronic Technology,Chengdu 610036,China)

机构地区：[1]海军研究院,上海200436 [2]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2022年第4期547-552,共6页Telecommunication Engineering

摘　　要：自由空间光通信(Free Space Optical Communication,FSOC)尤其是基于相干体制的卫星激光通信,正逐渐成为突破微波通信瓶颈、建设天地一体化网络、实现高速数据传输的重要手段。总结了欧空局、德国、日本及国内卫星相干激光通信的重要进展,给出了成功验证的相干激光通信系统的激光器、传输速率、多普勒频移补偿范围等参数,重点分析了基于Costas光锁相环(Optical Phase-Locked Loop,OPLL)技术的零差相干激光通信系统,并提炼出关键技术以及未来星间相干激光通信的发展趋势,可为卫星相干激光通信的研究提供一定的参考。Free space optical communication(FSOC),especially satellite laser communication based on coherent system,is gradually becoming an effective method in solving microwave bottlenecks,establishing the high-speed space-ground integrated broadband network,realizing the high-speed data transmission.Important developments on satellite coherent laser communication in European Space Agency(ESA),Germany,Japan and China are investigated,system parameters including laser,transmission rate and Doppler frequency shifting compensation are also presented.Furthermore,several important problems on key techniques and development tendencies in inter-satellite coherent laser communication are abstracted,which will provide a reference for those being engaged in the research on coherent satellite coherent laser communication.

关 键 词：自由空间光通信(FSOC) 卫星通信 相干激光通信 零差相干接收 光锁相环(OPLL)技术 

分 类 号：TN929[电子电信—通信与信息系统]