Trimble R10 - Page 139

TrimbleR10ReceiverWebHelp
Glossary

1PPS
Pulse‐per‐second.Usedinhardwaretiming.Apulseisgeneratedin
conjunctionwithatimestamp.Thisdefinestheinstantwhenthetimestamp
isapplicable.
almanac
Afilethatcontainsorbitinformationonallthesatellites,clockcorrections,
andatmosphericdelayparameters.Thealmanacistransmittedbya
GNSS
satellitetoaGNSSreceiver,whereitfacilitatesrapidacquisitionofGNSS
signalswhenyoustartcollectingdata,orwhenyouhavelosttrackof
satellitesandaretryingtoregainGNSSsignals.
Theorbitinformationisasubsetofthe
ephemeris/ephemeridesdata.
AutoBase
AutoBasetechnologyusesthepositionofthereceivertoautomaticallyselect
thecorrectbasestation;allowingforonebuttonpressoperationofabase
station.Itshortenssetuptimeassociatedwithrepeateddailybasestation
setupsatthesamelocationonjobsites.
basestation
Alsocalled
referencestation.Inconstruction,abasestationisareceiver
placedataknownpointonajobsitethattracksthesamesatellitesasanRTK
rover,andprovidesareal‐time
differentialcorrectionmessagestream
throughradiototherover,toobtaincentimeterlevelpositionsona
continuousreal‐timebasis.Abasestationcanalsobeapartofavirtual
referencestationnetwork,oralocationatwhichGNSSobservationsare
collectedoveraperiodoftime,forsubsequentpostprocessingto
obtainthe
mostaccuratepositionforthelocation.
BINEX
BInaryEXchangeformat.BINEXisanoperationalbinaryformatstandardfor
GPS/
GLONASS/SBASresearchpurposes.Itisdesignedtogrowandallow
encapsulationofall(ormost)oftheinformationcurrentlyallowedforina
rangeofotherformats.
broadcastserver
AnInternetserverthatmanagesauthenticationandpasswordcontrolfora
networkof
VRSservers,andrelaysVRScorrectionsfromtheVRSserverthat
youselect.
carrier
Aradiowavehavingatleastonecharacteristic(suchasfrequency,amplitude,
orphase)thatcanbevariedfromaknownreferencevaluebymodulation.
carrierfrequency
Thefrequencyoftheunmodulatedfundamentaloutputofaradio
transmitter.TheGPSL1carrierfrequencyis1575.42MHz.
carrierphase
IsthecumulativephasecountoftheGPSorGLONASScarriersignalatagiven
time.
cellularmodems
Awirelessadaptorthatconnectsalaptopcomputertoacellularphone
systemfordatatransfer.Cellularmodems,whichcontaintheirown