摘要
当前空间通信的发展趋势是空间通信网与地面通信网融合,建立天地一体化互联网络的信息传输系统。针对空间数据系统咨询委员会(CCSDS)推荐的基于CCSDS空间链路承载网际协议业务(IP over CCSDS)网关协议转换技术,文章提出一种实现天地一体化互联网络的航天器网关的设计思路,即通过研制航天器网关实现IP协议与CCSDS高级在轨系统(AOS)空间数据链路协议的相互转换,并对服务质量(QoS)保证方法进行了设计。针对航天器网络搭建了测试系统平台,并对高清图像、高质量话音、计算机数据和遥测数据等网络数据的传输进行了测试,测试中通过航天器网关进行传输的所有网络数据包均无丢帧现象发生,文章提出的IP over CCSDS网关可用于构建天地一体化互联网络。
The construction of an integrated space-ground data transmission system fusing space communication network with terrestrial one is the trend of space communication. To implement the protocol conversion of IP over CCSDS gateway,a method of protocol conversion between IP and AOS on spacecraft gateway to integrate space-ground networking is proposed, and a method of the guaranteed QoS （quality of service） is designed. To develop the gateway,a testing system based on the gateway is established and different kinds of network data are tested such as high- definition images, high-quality voice, computer data and telemetry. The result shows that the gateway can be used to transmit all kinds of IP packets without loss, and the proposed IP over CCSDS gateway can be used to establish an integrated space-ground network.
出处
《航天器工程》
北大核心
2016年第1期77-83,共7页
Spacecraft Engineering
基金
国家重大科技专项工程
