基于Linux系统的GAMIT与BERNESE表文件及观测值文件自动下载研究

摘要

GAMIT and BERNESE are all high precision GPS data processing softwares,for that the positioning models are actually accurate.Before data processing,they are all need to download some kinds of tables files such as DCB,precession, nutation,polar motion files and IGS observation files.But some of them have different URLs and some of them are updated at different times.So these procedures are complex.In this paper,using the bash language we can realize the script named BGdown which to download files automatically and save files by catalogue.Finally an example shows the feasibility and effectiveness of the script using BERNESE5 .2 software.%GAMIT与BERNESE都是高精度 GPS数据处理软件,定位模型较为严密.它们在处理数据之前,都需要下载各种类型的准备文件,例如DCB、岁差、章动、极移等表文件以及 IGS观测值文件.这些文件下载地址各不相同,有些文件的更新周期也存在差异,故人工手动下载相当繁琐.据此,基于 Linux系统的 Bash语言,实现上述文件的自动下载,并按目录存储.最后利用BERNESE 5 .2 软件通过实例来验证其可行性与有效性.