摘要
为解决主从式卫星集群在离散稀疏拓扑下的组网通信问题,保障其星间实时交互遥控遥测及任务信息的需求,根据主从式卫星集群的分层、分簇的空间拓扑特点,本文提出了一套通信系统架构和星间组网协议栈的设计方案。首先,在网络层的设计上,给出了网络层的数据结构、基于多权重优先级代价函数的子网簇首选择备份机制以及子星建网入网的流程;其次,在数据链路层,根据分包遥控和分包遥测体制按照层次化对数据进行处理;然后,在物理层的设计中采用扩跳频作为星间链路的通信体制,采用时分多址方式实现卫星集群的多用户通信,并给出了星间链路的具体通信指标;最后,对星间通信进行了链路计算,计算结果表明物理层设计满足各星通信需求。
In order to solve the networking communication problem of the main-subsidiary satellite cluster under discrete and sparse topology and to ensure the demand of real-time interactive remote control telemetry and task information between satellites,this paper proposes a set of communication system architecture and inter-satellite networking protocol stack design scheme according to the hierarchical and clustered spatial topology characteristics.Firstly,in the design of the network layer,the data structure of the network layer,the subnet cluster head selection backup mechanism based on the multi-weight priority cost function and the process of the sub-satellite network access are given respectively.Secondly,in the data link layer,the data is processed hierarchically according to the subcontracted remote control and subcontracted telemetry system.Then,in the design of the physical layer,the spread frequency hopping is used as the communication system of the inter-satellite link,and the time division multiple access method is used to realize the multi-user communication of the satellite cluster,and the specific communication index of the inter-satellite link is given.Finally,the link calculation of inter-satellite communication is carried out.The calculation results show that the physical layer design meets the communication requirements of each satellite.
作者
魏骁
王朝
叶葆巍
盛佳敏
张博
WEI Xiao;WANG Chao;YE Baowei;SHENG Jiamin;ZHANG Bo(Aerospace System Engineering Shanghai,Shanghai,201109,China)
出处
《遥测遥控》
2024年第5期19-26,共8页
Journal of Telemetry,Tracking and Command
基金
国家自然科学基金(62373305)。
关键词
主从式卫星集群
多权重优先级代价函数
簇首选择备份机制
扩跳频
时分多址
Main-subsidiary satellite cluster
Multi-weight priority cost function
Subnet cluster head selection backup mechanism
Spread frequency hopping
Time division multiple access
