摘要
空间激光链路的特点是捕获跟踪困难,只适合点对点通信,因此组网应用多采用环状拓扑,导致网络的终端消耗大、链路时延长。为解决该问题采取了星形拓扑,优化网络节点增加辅助捕获设备,并改进链路接入为两阶段捕跟,从而实现高性能的动态复用激光链路。该方案特点是采用角反射阵列进行预先捕获,从而大大减少实时通信准备时间,并设计激光终端备用池动态复用,从而大大降低组网成本并提高网络性能。
The space laser link is characterized by difficult acquisition and tracking,and is only suitable for point-to-point communication.Therefore,ring topology is often used in networking applications,resulting in high consumption of network terminals and high transmission delay.In order to solve this problem,the star topology is adopted,the network node is optimized to add auxiliary equipment,and the link access is improved to be two-stage tracking,so as to realize high performance dynamic multiplexing laser link.The scheme is characterized by the use of Angle reflector for pre-capture,which greatly reduces the real-time communication preparation time,and the design of laser terminal pool for dynamic multiplexing,thus greatly reduce the cost of networking and improve network performance.
作者
朱晓程
张文睿
苏兆莹
陈祥
陈安和
幺周石
张学娇
ZHU Xiaocheng;ZHANG Wenrui;SU Zhaoying;CHEN Xiang;CHEN Anhe;YAO Zhoushi;ZHANG Xuejiao(Space Laser Communication Branch,China Academy of Space Technology,Xi’an 710000,China;School of Physics and optoelectronics Engineering,xidian univercity,Xi’an 710000,China;Microwave And Power Branch,XI’an electronic engineering institute,Xi’an 710000,China)
出处
《空间电子技术》
2021年第3期7-12,共6页
Space Electronic Technology
基金
国家自然科学基金项目(编号:62001357)。
关键词
角反射阵列
两阶段捕跟
动态网络
corner reflector array
two-stage acquisition and tracking
dynamic network
