以中国附近几个站为例,
基本参数:
工程名称:chna
解算日期:2017年101-102日
测站名称: bjfs, urum, shao, kunm
新建工程目录2017,然后在下面建立 tables 目录;
新建 sites.defaults 文件,内容如下
# File to control the use of stations in the processing # # Format: site expt keyword1 keyword2 .... # # where the first token is the 4- or 8-character site name (GAMIT uses only # 4 characters, GLOBK allows only 4 unless there are earthquakes or renames), # the second token is the 4-character experiment name, and the remaining # tokens, read free-format, indicate how the site is to be used in the processing. # All sites for which there are RINEX files in the local directory will be used # automatically and do not need to be listed. # # ftprnx = sites to ftp from rinex data archives. # ftpraw = sites to ftp from raw data archives. # localrx = site names used to search for rinex files on your local system. # (required in conjunction with rnxfnd path variable set in process.defaults). # xstinfo = sites to exclude from automatic station.info updating. # xsite = sites to exclude from processing, all days or specified days # # Replace 'expt' with your experiment name and edit the following to list sites needed from external archive all_sites gnss xstinfo bjfs_gps chna ftprnx urum_gps chna ftprnx shao_gps chna ftprnx #chan_gps chna ftprnx kunm_gps chna ftprnx # templates for removing sites
在2017目录运行如下命令
sh_setup -yr 2017
在2017/tables下运行
sh_upd_stnfo -l sd mv station.info.new station.info
在2017目录运行如下命令
sh_gamit -expt chna -s 2017 101 102 -pres ELEV -orbit igsf -copt x k p -dopts c ao >&! sh_gamit_2017G.log
For GPS-only, omit the -gnss so that the day directory names will be the day-of-year only.
如果只处理一天的 则为:
sh_gamit -d 2017 101 -orbit IGSF -expt chna
如果计算正常,结果文件将存放在名称为年积日的文件夹内,本文为
2017/101G, 2017/102G
以101G为例,其中结果文件为:
sh_gamit_101G.summary 解算总结文件 qchnaa.101 解算记录 ochnaa.101 解算记录的简略版,一般关注此文件 hchnaa.101 协防差矩阵、参数平差值
在上述文件中,可根据描述来判断解算结果是否符合相应的需求。
其中,基线解算结果中的postfit_nrms项优于0.3左右时最佳;如果大于1.0,则表示此解存在问题。
运行GLOBK
在 /2017:
sh_glred -cmd
sh_glred -s 2017 123 2017 123 -expt chna -opt R H G T >&! sh_glred.log
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