遥测网络时间同步技术实现及检测方法研究

Realizations and Detection Method of Telemetry Network Time Synchronization Technology

为了解决飞行试验复杂遥测网络系统中各子系统间的时间同步问题,文章从探讨遥测网络中试验对象节点之间的时间同步概念着手,介绍了使用网络时间同步协议(NTP)或精确时钟同步协议(PTP)实现遥测网络试验对象节点间时间同步的原理和方法,提出了一种基于IEEE 1588协议的遥测网络时间同步技术实现方案和时间同步检测方法,分析了遥测网络传输时延和影响试验对象节点之间时间同步的主要因素,并给出了修正思路;该技术和方法为未来空地一体化综合测试网络时间同步提供了借鉴作用。

In order to solve the problem of time synchronization among the subsystems in the complex telemetry network system of flight test,this paper discussed the time synchronization concepts between the flight test telemetry network nodes,introduced principle and method of the network time synchronization protocol(NTP)and the precision clock synchronization protocol(PTP)to realize time synchronization among telemetry network test object nodes,proposed the implementation and detection method which based on IEEE 1588 time synchronization protocol of telemetry network,analyzed the main factors which influenced the telemetry network transmission delay and the time synchronization between the test object nodes,and gave the revision.This technique and method can be used for reference for the time synchronization of integrated test network in the future.