GAMIT软件Track模块使用帮助.docx
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GAMIT软件Track模块使用帮助
GAMIT软件Track模块使用帮助
TrackRT:
RealtimeGPSkinematicprocessingprogram
TrackRTB:
RealtimeGPSkinematicprocessingprogramforusewithPre2.5BNC
TrackRTr:
RinexfileemulatoroftrackRTforpost-processingevaluation
Runstring:
%trackRT
%trackRTB
whereoptionsare
-mHostnameofsystemwithreal-timedataport
（NormallyBNCwouldberunningonthissystem）
（Defaultlocalhost）
-pPortnumberonhostsupplyingthedatastream
（Mandatoryinput）.
-ftrackRTcommandfile（similartotrackcommandfile）
-r4-charcodeforreferencesite.
-dlistofsitestobeprocessed.Ifnot
specifiedallsitesindatastreamwillbeprocessed
（thereisalimitonmaximumnumberofsitesthatcanbe
processeddependingonmax_siteintrack.Thereference
codeshouldNOTbegivenhere.）
-nSpecifiesarootnametowhichoutputwillbedirected
（.outisappendedforstdoutoutput）.Use?
inthe
pos_root,sum_fileandcsv_filenamesthe?
willbe
replacedbythisstring.
Commandfilenamemustbegiven.
%trackRTrSamelistofoptionalthough-m,-phavenoeffect
-dlistofrinexfiles（sitenamesaregeneratedfrom
thefirst4-charactersofrinexfilenames）
VERSIONS:
---------
1.13--Fixedtime-equateiinSaveObsAsothatadiffernceofmore
than0.1secondsinneededforanewepoch（trackRTonly）
AddedreferencerelativehumidityforGPT.（120103）
1.12--HandlebadPRNfromBNCwhereG23==203.
1.11--VersiontohandlemissingsatellitesinSP3files（110505）
1.10--VersiontohandlerBNC2.5andgreaterthatisnowoutputing
asciiratherthanbinarydata（trackRTBhandlesBNC2.0）（110501）
1.00--Initialversion100301（2010March1）
INTRODUCTION:
-------------
TrackRT/TrackRTBandtrackRTrhavemanycommandsthatallowitbecontrolled
bothwhenstartedandduringruns.Belowthedetailedcommandsaregiven
andherewegivetheminimumcommandsneeded.
SP3_DIR:
（unlesssp3filesareinthecurrentdirectory）
SITE_POS:
Sitepositionsmustbegivenforeverysitetobeprocessed.
SITE_STATS:
Tosettheapriorisigmaandprocessnoiseforthesites.
NOTE:
Thereferencesitepositionshouldbesettozero
fortheapriorisigmaandprocessnoise.Typicalsite_stats
wouldbewherecit1hereisthereferencesite.
site_stats
all0.10.10.10.0250.0250.025
cit10.00.00.00.00.00.0
ATM_STATS:
Bydefaultatmosphericdelaysarenotestimated,andnormally
theseshouldbe.Normallythereferencesiteissettozero
whensiteseparationsarelessthe500-1000km.Typicalatm_stats
commandwouldbe
atm_stats
all0.200.000100.000!
Unitm/sqrt（sec）->0.0001=0.03m/sqrt（day）
cit10.000.000000.000
Ifmixedantennaandreceivertypesareused
ANTE_OFF:
Tospecifytheantennaheightsandtypesandreceivertypes
ANTMOD_FILE:
Mustbegiventogettheantennaphasecentermodels
RCV_TYPE:
Neededformixedreceivertypes（entrycanbespecifiedin
ANTE_OFFalsoandthiscommandwouldnotbeneeded）.
DCB_FILE:
Uptodate,datacodebias（DCB）file（partofGAMITftparea）.
Including
UPDATE_FILEisusefulsothattrackRTcanbecontrolledonthefly.
TrackRTBshouldbeusedforolderversionsofBNC.Ifnofilesarecreated
bytrackRTortrackRTB（listoffilesshouldbelistedshortlyafterthe
programisstarted）thentryusingtheotherversion.Theprogramareidentical
excepttrackRTBisexpectingabinarydatastream.
COMMANDS
--------
Input/Outputcommands
---------------------
SP3_DIR
--Directorywheresp3filesarestored
--Centerfororbits（defaultigs,igrandigualsotested）POS_ROOT
Settherootpartofthenamefortheoutputfiles.
Rootpartofname.When?
includedinthe,the?
is
replacedwiththe-nstring.
Durationofdataineachfile.Thedesignationsofd,h,orm
maybeusedtospecifytheunitsofdays,hours,minutes.
Defaultisd.
Thepositionfilenamestaketheform:
（seecommandsbelow）
....
Theresolutionofthewhichismodulotheoutputinterval
dependsontheoutputduration.Foroutputdurationsgreaterthanor
equalto1-day,thetimeisgivenasYYYYMMDD.Forintervalsshorter
than1-day,itisYYYYMMDD:
HHMN.Miniumoutputintervalis1minute.
SUM_FILE
Setstherootpartofthesummaryfilename.Using?
inthename
withbereplacedbythe-nstring.（Defaultifcommandisnotgiven
istrackRTorthe-nstringwhen-nused）.Filenamesaretimetagged
accordingtothepos_rootoutputinterval.
CSV_ROOT
Settherootpartofthenameforcommaseparatedvalues（CSV）output
file.ThesefilesareusedforAmChartswebplots.
DCB_FILE
Setthenameofthedata-code-bias（DCB）file.Thisfileispartofthe
GAMITtablesdirectoryandshouldbeupdatedregularly.Itisusedto
removebiasesintheMelbourne-Wubbenawidelanes.Thereceivertypecan
bespecifiedwiththeRCV_TYPEorANTE_OFFcommands.
ANTMOD_FILE
SetsthenameofastandardIGSantexfilewithphasecentermodelsfor
theGPSgroundantennas.Antennatypesatspecificsitesaregivenwith
theANTE_OFFcommand.Thiscommandmybeusedmultipletimesforsite
specificmodelwithnewmodelsreplacingpreviouslyreadones.
UPDATE_FILE
AllowsnewtrackRTcommandstobeissuedduringarun.Oncethefileis
readitneedstobedeletedbeforethetrackRTwillre-readit.Fileis
onlyreadifitexists.NOTE:
FileshouldberemovedbeforetrackRTis
runorelseitwillbereadwhenthecommandfileisread（ie.,itwill
overwritethecommandsinthecommandfile.
OUT_TYPE
Specifiestypesofoutputcoordinates.Alltypescanspecifiedina
singlestringwithnospaces.Thetypesare
NEU--North,East,Updifferencesfromthereferencesiteorfromthe
coordinatesgivenintheREF_NEUcommand.
GEOD--Geodeticlatitude,longitudeandheight（intheGEODformat,the
totalatmoshericdelayisgiven,whileintheotherformatsthe
adjustmenttotheaprioridelayisgiven）.
XYZ--CartersianXYZcoordinates
DHU--DeltahorizontalandUpcoordinatesfromtheaprioricoordinates
ofeachsite（defaultoutputtype）
OUT_SIG_LIMIT
Setsthemaximumsigmaofapositionestimateforittobeoutput.
Ifpseudorangedatatypesareused,thedefaultvalueof1mneeds
toincreasedto10-100meters.
Analysiscommands
-----------------
DATA_NOISE[PRN]
AllowsspecificiationofthenoiseintheL1phase,L2phase,
P1rangeandP2range,andtheweightgiventoelevationangle
depepence（atver1.20）;varianceisscaleby（1+（W/sin（el））^2）
whereWisthe.Thesevaluesaffectthesigmasprintedfor
thepositiondeterminations
Optional:
PRNmaybeaddedandnoiseassignedtothatPRN（if
non-PRNformisused,thiswillreplaceallPRNspecificvalues
sousethenon-PRNfirstfollowedbyspecificPRNvalues
DATA_TYPE
Specifiestypeofdatatoprocess.TypessupportedareL1L2LCP1P1PC
whichcanbecombinedinacontiguousstring.Filesnamesincludethis
stringattheend.
Vers1.0:
OnlyLC,LCPCandPChavebeentested.SpecificallyL1onlydata
havenotbeenfullyimplementedyet.
USE_GPTGMF
SettheusedoftheGPTtemperaturepressuremodelandtheGPTdryandwet
mappingfunctions.Optionalrelativehumityaddedvers1.27;default0.00.
DefaultistheolderMTTatmosphericmodel.
SiteandAntennainformation
Siteinformationisenteredbyfirstgivingthecommandandthenthe
informationbysiteonthesubsequentlines
SITE_POS
Site
Siteisthefourcharacternameofthesite（morecharacterscanbeincluded
butonlythefirst4arechecked）.Sitenamesthatdonotappeatinthelist
ofsitestobeprocessedareignored）.Theremainderofthelinecontains
positonandvelocityandtheepochindeciminalyearstowhichtheposition
refers.
ANTE_OFF
Site
Specifiesthetypeofantennaanditspositionofantenareferencepoint（ARP）
ateachsite.Theantennanameincludingradomeshouldbespecifiedwiththe
officialIGSnameforastandardANTEXfileorwithauniquenamethatappears
intheANTEXfileforsitespecificcalibrations.（Note:
Thereisone
additionalcharacterinthestation.infolongantennaandthisextracharacter
beforetheradomenamemustberemoved.Theantennanameandradomecanbe
copieddirectlyfromtherinexfileifpresent.OnemoreANTEXfilesmustbe
specifiedwiththeANTMOD_FILEcommandfortheantennanamestobeuseful.
ThereceivertypeDCBcodecanbeoptionallyspecifiedhereaswell（SeeRCV_TYPE
command）.
RCV_TYPE
Site
Specifiesthetypeofdata-code-bias（DCB）correctionneededforthereceiver.
CodespecifiesthetypeofL1andL2rangesbeingmeasures.Thechoicesare
P--Pcode,C--C/AandNC/AwithcrosscorelationforL2range.Thecodes
canbefoundingamit/tables/rcvant.dat.Thesecodescanalsobegiveninthe
ante_offcommand.Anup-to-dateDCB_FILEcommandmustbeusedtospecifythe
DCBbiases.ThefilesareavailablefromtheMITftpsiteandupdateonceper
month.
SITE_STATS
Site
Givesstatisticstoassigntothekinematicstationpositions.The
arethethreesigmasinXYZfortheinitialpostion
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