摘要
为了解决深空中继链路信道受限情况下复杂密集信息流的高效传输问题,嫦娥四号设计实现了多信道、多模式、多码速率、长短帧相结合的数据传输机制,通过优化组合,充分利用信道资源,满足了不同飞行阶段的数据传输需求.同时通过自主运行策略降低中继链路的使用风险,确保中继链路故障情况下关键事件、关键分系统的安全性与可靠性.通过嫦娥四号飞行试验,验证该设计合理有效,为未来深空数管的设计实现提供了直接而有力的技术支持.
A data transportation mechanism with respect to the characters of multiple channels,multiple model,multiple symbol rate and combination of short and long frames is proposed for Chang'e-4 to address the efficient transportation of complex and intensive information flow when the channel of relay link in deep space is limited.The recourse of channel is optimized to fulfill the requirement of data transportation in different flight phases.The autonomous management scheme reduces the risk of relay link,assuring the security and reliability of key events and subsystems under the failure of relay link.The validity of proposed method is verified through flight experiment of Chang'e-4,offering technical support for the design of data management in deep space in the future.
作者
叶志玲
顾明
张翠涛
YE Zhiling;GU Ming;ZHANG Cuitao(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《航天器工程》
CSCD
北大核心
2019年第4期94-100,共7页
Spacecraft Engineering
基金
国家重大科技专项工程
