摘要
载人太空站、无人空间平台、深空探测器等空间任务系统的一个共同特征是需要在整个空间链路,即空—地、地—空之间传输多种类型、不同速率的数据。空间任务系统由空间无线网和地面网两部分组成。根据空间数据系统咨询委员会(consultative committee for space data systems,CCSDS)制定的高级在轨系统(advanced orbiting systems,AOS)协议和异步传输模式(asynchronous transfer mode,ATM)协议的特点,提出了一种基于AOS与ATM协议互联的空—地组网方法。仿真结果表明:该方法实现了异构网络(地面网与空间无线网)的互联,视频、语音等流媒体传输性能可满足用户对服务质量(quality of service,QoS)控制的要求。
The space missions include manned space station, unmanned space platforms and deep space detector, many of which need services to transmit data with multiple digital types and rates through space links, namely space/ground and ground/space data channels. The space missions consist of two segments, the space wireless network and the ground network. According to the properties of consultative committee for space data systems （CCSDS） advanced orbiting systems （AOS） and asynchronous transfer mode （ATM）, a space/ground network scheme based on interconnecting AOS with ATM protocol is presented. The simulation results show that this scheme implements interconnection of heterogeneous network （ground network and space wireless network）, and the transmission performance of video and audio flow-media meets the requirements of user QoS control.
出处
《电子测量技术》
2008年第3期141-146,共6页
Electronic Measurement Technology
基金
国家十一五计划基金项目资助(1320061262)
