面向高速卫星载荷的统一数据流设计

摘要

针对高速载荷卫星数据量大、数据率高等特点,并结合卫星组网及星上自主管理等需求,制定了基于CCSDS - AOS体制的整星统一数据流总体设计方案.文中对相关协议进行了分析,对数据源进行了分析归类,对业务模型进行了适应性裁剪,对虚拟调度策略进行了简要分析.特别针对高、低速数据源设计了整合的星载网络传输结构,进行基带信息的一体化设计.方案适用于以高速载荷为主要载荷的多任务卫星的数据流设计.%With attention to the large data amount and high data rate of the payload on the remote sensing satellite, this paper has designed a blueprint for the unification of different dataflows on the satellite based on the CCSDS-AOS standards. Trie content covers analyses of relevant communication protocols, the classification of data sources, the service model, and the virtual-control strategy as well. Especially, catering to the coexistence of the high and low data rates of different sources, it provides a incorporated design of the space-based network structure and the baseband information stream. This design is applicable to the multi-mission remote sensing satellites carrying a primitive payload with a large data amount and high data rate.