基于HLA的TDMA同步问题研究

Time Slot Synchronization of TDMA based on HLA

联合战术信息分发系统JTIDS(Joint Tactical Information Distribution System)系统是无中心的移动通信系统,采用时分多址(TDMA)的网络接入协议。TDMA网络是一种同步网络,必须有统一的时间基准,各终端的时隙必须与时间基准同步,因此时隙同步技术是确保该网络正常工作的关键技术。基于HLA/RTI仿真平台,对网络延迟进行了测试,针对RTI中联邦成员的时间延迟很不稳定的问题提出并实现了一种简单高精度的软件时钟同步方法。

JTIDS of American Army adopts TDMA communication protocol that has no central node. TDMA network is a kind of synchronization network and must have unities time benchmark and the time slot of node must synchronize with time benchmark. Based on HLA/RTI, the time delay of network transmission is tested. Finally for the federate ambassadors of RTI has the unstable time delay, one simple software time synchronization methods with high precision is proposed and realized.