高分五号卫星高效高速数据传输技术研究

Research on Efficient High-Speed Data Transmission Technology for GF-5 Satellite

针对传统的固定通道数据传输技术无法满足高分五号卫星星上遥感数据高效、高速获取的及时性和可靠性,对高效、高速和高可靠数据传输技术进行了深入研究。采用“类IP”混合传输技术最大化利用星地信道;高效“流水线”数据存储以及处理技术保证了5Gb/s的吞吐率和2.3Gb/s载荷数据输入的快速处理;37°的南半球复位线和实时刷新,降低了空间单粒子风险,提高了系统的可靠性;“T+W”的作业表方式提高了系统的使用方便性。在轨试验结果表明:高分五号卫星高效高速数据传输技术提高了卫星使用效能和用户体验。

The traditional fixed-channel data transmission technology cannot meet the high-efficiency and highspeed acquisition timeliness and reliability of the GF-5satellite on-board remote sensing data.The GF-5satellite carries on the high-efficiency,high-speed and high-reliability data transmission technology.“IP-like”hybrid transmission is innovated to maximize the usage of satellite-to-ground channels,efficient“pipelined”data storage and processing technology ensures fast processing of 5Gb/s throughput and 2.3Gb/s payload data input;37°South Pole reset line and real-time dynamic configuration reduce the risk of space single benefit and improve the reliability of the system,the“T+W”worksheet mode improves the convenience of the system.The results of the on-orbit test show that the high-speed data transmission technology of GF-5satellite improves the satellite performance and user experience.