高级在轨系统在风云三号气象卫星中的应用

摘要

In order to meet the needs of large capacity, high-speed, and multi-payload data transfer, the data transfer system of the FY-3 Meteorological Satellite adopts AOS (Advanced Orbiting System) standards recommended by CCSDS (Consultative Committee for Space Data Systems). Based on the concept of virtual channels, the multiplexing and bit stream services are provided to different types of payload data. The application results show that the two types of services meet not only the requirements of multiple high-speed transfer rates, but also the requirements of multi-payload data transfer with different amount and formats. Based on the AOS protocol, the transfer frame format and the coding mode of FY-3 are introduced.%为了满足大容量、高速率、多载荷数据的传输需要,风云三号气象卫星数据传输系统采用了空间数据系统咨询委员会CCSDS(Consultative Committee for Space Data Systems)推荐使用的高级在轨系统AOS( Advanced Orbiting System)标准,利用虚拟信道的概念,将不同速率、不同性质的载荷数据按AOS多路复用业务和位流业务两种业务处理.实际运行结果表明,采用这两种业务既可以满足卫星多种高速传输速率的要求,又可满足多载荷不同数据量、不同数据格式的传输要求.在分析CCSDS AOS协议的基础上,介绍了风云三号气象卫星所采用的数据编码格式及组帧方式.