PTDN技术在航天测控通信网的应用研究

针对我国航天测控通信网采用TCP/IP(Transmission Control Protocol/Internet Protocol,传输控制协议/互联网协议)导致的协议无法自主可控、服务质量难以保障以及网络资源难以精细化管理等问题,分析了国际上通信网络技术的现状及发展趋势,在介绍PTDN(Packet Telecommunication Data Network,分组通信数据网)技术的基础上,进行了PTDN技术在航天测控通信网中的适用性分析,给出了协议应用带来的效果改善以及存在的不足。随后,结合PTDN技术的未来发展情况,提出了该技术在航天测控通信网中的应用部署策略。最后,搭建实验环境对航天测控通信网采用PTDN技术的效果进行了实验测试,结果表明PTDN技术可有效支持除组播传输以外的其他业务应用。

Research on Application of PTDN in TT&C and Communication Networks

In view of the weaknesses of TT&C (Tracking, Telemetry and Command) and communication networks in proprietary and controllable protocol, lack of QoS (Quality of Service) assurance and fine network management for using TCP/IP (Transmission Control Protocol/Internet Protocol) protocol, this paper analyzes the status and evaluative trend of network technology in the world. Following introduction of PTDN (Packet Telecommunication Data Network) protocol, the paper discusses the applicability for introducing PTDN protocol in TT&C networks and points out the advantages and disadvantages. Then, the paper brings forward the applying strategy of PTDN for TT&C and communication network according to the development of PTDN technology in the future. In the end, this paper tests the effects for introducing PTDN protocol through practicality experiments, which indicates that PTDN technology can support all the applications except multicasting.