云计算技术在大规模基准站网中的应用

Application of cloud computing technology in large-scale reference station network

针对常规个人计算机(PC)存贮与计算效率低,无法满足大规模全球卫星导航系统(GNSS)基准站网高效数据计算要求的问题,提出利用云计算技术实现高效的计算:采用云计算技术搭建计算平台,安装GAMIT/GLOBK软件系统进行大规模GNSS基准站网数据处理,并与PC机解算进行对比分析。结果表明:云计算平台上同时运行6个以上任务时,效能明显优于PC机;且随着任务数量的增多,效能显著提高,当软件打开文件数量达最大荷载时,云计算平台仍稳定正常运行,且计算结果正确可靠。

Aiming at the problem that the storage and calculation efficiency of conventional personal computer(PC) is low, which cannot meet the requirement of high-efficient data calculation of large-scale GNSS reference station network, the paper proposed to use cloud computing technology to implement the calculation: cloud computing technology was adopted to build a computing platform, and GAMIT/GLOBK software system were installed to process the data of large-scale GNSS reference station network, then comparative analysis between cloud computing and PC was carried out. Result showed that: when there are more than six tasks on cloud computing platform simultaneously, the efficiency would be obviously better than that of PC, and the performance could improve significantly with the increase of the number of tasks;when the number of files opened by the software reaches the maximum load, the cloud computing platform could be still stable in normal operation, with correct and reliable calculation results.