面向导航星座的星间传输协议测试系统设计

Design of Inter-satellite Transmission Protocol Testing System for Navigation Constellation

摘要:

星间网络协议是卫星通信的基础;目前,随着网络技术的发展,网络协议的功能越来越复杂,使得协议的测试越来越重要;星间网络协议中处于核心地位的传输层协议是在测试中受到重点关注;由于导航星座的条件限制,现阶段难以对其使用的传输协议进行整网测试,因此需要一个协议测试系统来满足测试需求;在分析了导航星座通信网络特点与星间传输协议的基础上,设计了传输协议测试系统;该测试系统对星间网络协议的传输层协议进行实现,并通过数据总线来模拟数颗卫星之间的数据通信;测试结果表明,测试系统能够满足星间传输协议的测试需求。

Abstract:

Inter-satellite network protocol is the basis of satellite communications. At present, the function of network protocol became more and more complex with the development of network technology, it makes the testing at protocol very important. The transport layer protocol which is at the core of inter-satellite network protocol receives great attention . Due to limited conditions of navigation constellation, currently, the entire network testing can not be done on transmission protocol. Therefore, a protocol testing system is needed to meet the test requirements. Based on analysis of navigation constellation communication network features and inter-satellite transmission protocol, a protocol testing system is designed. This system realize the transport layer protocol of inter-satellite network protocol and simulate communication between multiple satellites through the data bus. The test result shows that, the protocol testing is able to meet the test requirement of inter-satellite transport protocol.