摘要
针对空间站工程复杂交会对接任务,梳理支持复杂交会对接任务的星间链路需求,提出一种基于物理层、链路层和应用层的分层架构式的星间链路设计,支持空间站工程的前向、后向和径向的交会对接任务,解决传统星间链路无法支持径向交会对接任务的问题。针对星间链路,分别设计采用扩频、非扩频通信体制的物理层,里德-所罗门(RS)编码的分包传输的链路层,以及针对各类信息流的应用层传输协议和自主控制策略。文章提出的星间链路设计经过神舟十二号、十三号载人飞船与天和核心舱的在轨交会对接任务验证,具备通信距离远、传输带宽高、抗干扰能力强和支持复杂交会对接任务的优点。
Aiming at the complex rendezvous and docking missions of the space station project,the requirements of the inter-satellite link are analyzed,and a layered inter-satellite link design is proposed based on physical layer,link layer and application layer,which supports the forward,backward and radial complex rendezvous and docking missions.The design solves the problem that the traditional methods cannot support the radial rendezvous and docking mission.The proposed physical layer adopts spread spectrum and non-spread spectrum communications.The link layer supports packet transmission based on RS(Reed Solomon)coding.And,the designed application layer transport protocol supports various information flows.The application layer autonomous control strategy is also proposed.This design has the advantages of long communications distance,high bandwidth,strong anti-interference ability and supporting complex rendezvous and docking missions.This design has been verified by both Shenzhou-12 manned spacecraft and Shenzhou-13 manned spacecraft which have achieved rendezvous and docking with the Tianhe core module.
作者
龙吟
黄才
丁凯
张克楠
杜文志
夏奕
赵岩松
LONG Yin;HUANG Cai;DING Kai;ZHANG Ke’nan;DU Wenzhi;XIA Yi;ZHAO Yansong(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《航天器工程》
CSCD
北大核心
2022年第5期15-25,共11页
Spacecraft Engineering
基金
国家科技重大专项。
关键词
交会对接任务
星间链路
物理层
代传数据
自主控制
rendezvous and docking mission
inter-satellite link
physical layer
substitution of transmitting data
autonomous control