GAMIT软件Track模块使用帮助.doc
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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 duration
14、s 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 root part of the summary file name. Using ? in the namewith be replaced by the -n string. (Default if command is not givenis tra
15、ckRT or the -n string when -n used). File names are time taggedaccording to the pos_root output interval. CSV_ROOT Set the root part of the name for comma separated values (CSV) outputfile. These files are used for AmCharts web plots. DCB_FILE Set the name of the data-code-bias (DCB) file. This file
16、 is part of the GAMIT tables directory and should be updated regularly. It is used toremove biases in the Melbourne-Wubbena widelanes. The receiver type canbe specified with the RCV_TYPE or ANTE_OFF commands. ANTMOD_FILE Sets the name of a standard IGS antex file with phase center models forthe GPS
17、ground antennas. Antenna types at specific sites are given withthe ANTE_OFF command. This command my be used multiple times for sitespecific model with new models replacing previously read ones. UPDATE_FILE Allows new trackRT commands to be issued during a run. Once the file is read it needs to be d
18、eleted before the trackRT will re-read it. File is only read if it exists. NOTE: File should be removed before trackRT isrun or else it will be read when the command file is read (ie., it willoverwrite the commands in the command file. OUT_TYPE Specifies types of output coordinates. All types can sp
19、ecified in a single string with no spaces. The types areNEU - North, East, Up differences from the reference site or from the coordinates given in the REF_NEU command. GEOD - Geodetic latitude, longitude and height (in the GEOD format, the total atmosheric delay is given, while in the other formats
20、the adjustment to the apriori delay is given).XYZ - Cartersian XYZ coordinatesDHU - Delta horizontal and Up coordinates from the apriori coordinates of each site (default output type) OUT_SIG_LIMIT Sets the maximum sigma of a position estimate for it to be output.If pseudorange data types are used,
21、the default value of 1 m needsto increased to 10-100 meters. Analysis commands- DATA_NOISE PRNAllows specificiation of the noise in the L1 phase, L2 phase,P1 range and P2 range, and the weight given to elevation angledepepence (at ver 1.20); variance is scale by (1+(W/sin(el)2) where W is the . Thes
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