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1、GAMIT软件Track模块使用帮助TrackRT : Realtime GPS kinematic processing programTrackRTB : Realtime GPS kinematic processing program for use with Pre2.5 BNCTrackRTr : Rinex file emulator of trackRT for post-processing evaluationRunstring:% trackRT % trackRTB where options are -m Host name of system with real-t
2、ime data port (Normally BNC would be running on this system) (Default local host) -p Port number on host supplying the data stream (Mandatory input). -f trackRT command file (similar to track command file) -r 4-char code for reference site. -d list of sites to be processed. If not specified all site
3、s in data stream will be processed (there is a limit on maximum number of sites that can be processed depending on max_site in track. The reference code should NOT be given here.) -n Specifies a root name to which output will be directed (.out is appended for stdout output). Use ? in the pos_root, s
4、um_file and csv_file names the ? will be replaced by this string.Command file name must be given.% trackRTr Same list of option although -m, -p have no effect -d list of rinex files (site names are generated from the first 4-characters of rinex file names)VERSIONS:- 1.13 - Fixed time-equate iin Save
5、ObsA so that a differnce of more than 0.1 seconds in needed for a new epoch (trackRT only) Added reference relative humidity for GPT. (120103)1.12 - Handle bad PRN from BNC where G23 = 203.1.11 - Version to handle missing satellites in SP3 files (110505)1.10 - Version to handler BNC 2.5 and greater
6、that is now outputing ascii rather than binary data (trackRTB handles BNC2.0) (110501)1.00 - Initial version 100301 (2010 March 1)INTRODUCTION:-TrackRT/TrackRTB and trackRTr have many commands that allow it be controlled both when started and during runs. Below the detailed commands are given and he
7、re we give the minimum commands needed.SP3_DIR : (unless sp3 files are in the current directory)SITE_POS: Site positions must be given for every site to be processed. SITE_STATS: To set the apriori sigma and process noise for the sites. NOTE: The reference site position should be set to zero for the
8、 apriori sigma and process noise. Typical site_stats would be where cit1 here is the reference site. site_stats all 0.1 0.1 0.1 0.025 0.025 0.025 cit1 0.0 0.0 0.0 0.0 0.0 0.0ATM_STATS: By default atmospheric delays are not estimated, and normally these should be. Normally the reference site is set t
9、o zero when site separations are less the 500-1000km. Typical atm_stats command would be atm_stats all 0.20 0.00010 0.000 ! Unit m/sqrt(sec) - 0.0001 = 0.03 m/sqrt(day) cit1 0.00 0.00000 0.000If mixed antenna and receiver types are used ANTE_OFF: To specify the antenna heights and types and receiver
10、 typesANTMOD_FILE: Must be given to get the antenna phase center modelsRCV_TYPE: Needed for mixed receiver types (entry can be specified in ANTE_OFF also and this command would not be needed).DCB_FILE: Up to date, data code bias (DCB) file (part of GAMIT ftp area).IncludingUPDATE_FILE is useful so t
11、hat trackRT can be controlled on the fly.TrackRTB should be used for older versions of BNC. If no files are createdby trackRT or trackRTB (list of files should be listed shortly after the program is started) then try using the other version. The program are identicalexcept trackRTB is expecting a bi
12、nary data stream. COMMANDS-Input/Output commands- SP3_DIR - Directory where sp3 files are stored - Center for orbits (default igs, igr and igu also tested) POS_ROOT Set the root part of the name for the output files. Root part of name. When ? included in the , the ? is replaced with the -n string. D
13、uration of data in each file. The designations of d, h, or m may be used to specify the units of days, hours, minutes. Default is d.The position file names take the form: (see commands below).The resolution of the which is modulo the output intervaldepends on the output duration. For output durations greater than orequal to 1-day, the time is given as YYYYMMDD. For intervals shorterthan 1-day, it is YYYYMMDD:HHMN. Minium output interval is 1 minute. SUM_FILE Sets the ro
