网络延迟对基于高层体系结构/运行时支撑构件的分布交互仿真系统的影响

研究了网络延迟对基于HLA／RTI的分布交互式仿真系统的影响。给出了分布式仿真实验环境的细节，提供了网络仿真的工具，模拟了50ms，100ms，200ms的网络延迟，研究了网络延迟对仿真进程实时性的影响。采用状态数据的时戳技术和状态预测算法，可以降低网络传输时间的影响，实验表明在200ms的延迟下实体定位的偏差可以降到0．5m以下。

Effect of Network Delay on Distributed Interactive Systems Based on High Level Architecture/Run Time Infrastructure

The effect of network delay on distributed interactive simulation systems based on HLA/RTI is studied. Details on the distributed simulation environment are provided. The instrumentation and technique of network emulation are also provided. When the delays are emulated as 50 ms, 100 ms and 200 ms. the effects of real-time performance of the DIS System are studied. One technique for mitigating the effects of network transit time, time-tagging of the state data and state forecasting, has shown that the entity location errors arising in a distributed simulation (with up to 200 msec of network delay) can be reduced below 0.5 m.