Use GLOBK batch processing commands for network adjustment

Use GLOBK batch processing commands for network adjustment

1. Description

First, you must complete baseline calculation.

Sh_glred is executed in the project-level directory, but is run in the solution directory (gsoln). This directory can also be specified by the glbpth parameter in the process. ults file.

2. parameter configuration

2.1 globk_comb.cmd and glorg_comb.cmd

If the two files do not exist, we recommend that you create them manually, though sh_glred can generate them.

Run the command "sh_glred-cmd" to generate the template file for the above configuration in the gsoln folder for modification.

You must configure a prior coordinate file (. apr), the testing site used in the solution, the testing site and constraints used in defining the reference framework, etc, the built-in itrf file can be used as a prior coordinate ).

2.2 sites. dafaults

The sites used in each step are composed of sites. mark in dafaults: The test site included in the glred combination is marked by glrepu. In glorg, the test site used to define the reference framework is marked by glreps, the test site for generating time sequence diagrams is marked by glts. By default, all test sites are used and plotting is performed.

NOTE: If glreps is used in the sites. defaults file to mark the fixed point during adjustment, comment out the "stab_site clear" option in glorg_combNaNd (Add "x" in front ").

3. Command Execution

After completing the preceding operations, you can adjust the batch processing network. Run the following command in the project directory:

Sh_glred-s <yr1 doy1 yr2doy2>-expt <expt>-net <networks>-local-nettext <char>-yrext <year>-ncomb <num>-stnfo <station.info> -cmd-opt <a f h l u g e k c r>

Here,-s specifies the start time (yr1 doy1) and end time (yr2 doy2). expt is a four-character project name, and network indicates the H-file containing SOPAC, the default SOPAC option is all (all), or only some solutions are combined. If-local is specified, the script only processes the days within the data range; otherwise, it will automatically go to SOPAC to find the H-file and process all data within the specified number of days. The day to be processed can also be specified in-d yr days or-r days. Optional parameter-ncomb is used to specify the number of days that each combination contains. The default value is 1 day. However, you can also use a script to generate the average value of local or global files per week or month.

The following is a detailed description of the optional parameters of the opt option (from GAMIT 10.35 Chinese Document)

• <R> put the old h *. gl? The file is deleted from the glfpth directory.

• <F> download the global h file from the SOPAC website and search for the file based on the name provided by the <networks> parameter item.

• <H> RUN htoglb on all existing or ascii files linked to glfpth (usually procdir/glbf.

• <LA> link all locally archived ascii H files (that is, all h [net | expt]?. Yyddd) to the combination.

• <LB> link all locally archived ascii H files (that is, all h [net | expt]?. Yyddd) to the combination. Start from htnd and start to search down. htnd is the default one.

• <LC> link the locally generated combined binary H file (named *. GLX ).

• <U> RUN hfupd on the binary h file (not trial yet ).

• <G> RUN glred for combination or re-combination.

• <E> RUN ensum and sh_baseline to plot.

• <C> decompress the ascii H file and delete all links. Copy the ascii H file and the binary H file respectively as glbpth/ascii_yyyy and glbpth/bin_yyyy, where glbpth is composed of process. the value specified by ults.

• <A> complete all options

Example: % sh_glred-s $ year1 $ sdoy $ year2 $ edoy-expt $ expt-local-opt H G E

$ Year1 and $ sdoy are the start and accumulation days of network adjustment, and $ year2 and $ edoy are the end and accumulation days.

4. Calculation Result

After running the command, you can find the adjustment result files *. prt and *. org In the gsoln/folder.

The fixed point is marked.

PS: although this method can quickly obtain network adjustment results and station speed, this adjustment method is not recommended in the official guide of GAMIT/GLOBK software. We recommend that you only use this method to merge the arrival coordinates of the GPS network, and then use the globk command to call globk_vel.cmd and glorg_vel.cmd to get the arrival speed (because the sorting time is late, some may remember wrong, read GLOBK_Ref by yourself ).

GAMIT reading: l

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