RTK

E586573

RTK is a high-precision satellite navigation technique that uses carrier-phase measurements and correction data from a reference station to provide centimeter-level positioning accuracy in real time.

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Statements (49)

Predicate Object
instanceOf satellite navigation technique
aimsToReduce ionospheric delay errors
multipath effects
satellite clock errors
satellite orbit errors
tropospheric delay errors
aimsToResolve carrier-phase ambiguities
appliesTo BeiDou signals
GLONASS signals
GNSS signals
GPS signals
Galileo signals
baselineLimit typically up to about 10–20 km for highest accuracy
canBe network RTK
single-base RTK
comparedTo has higher accuracy than standard code-based GNSS positioning
correctionDataType carrier-phase corrections
differential corrections
dependsOn continuous tracking of GNSS carrier phase
errorSourceSensitivity radio interference
signal obstructions
fullName Real-Time Kinematic
isSubsetOf high-precision GNSS positioning techniques
networkRTKProvides virtual reference station corrections
networkRTKUses multiple reference stations
operatesIn real time
processingMode kinematic
providesAccuracyLevel centimeter-level positioning accuracy
requires base station
data link between base and rover
precise antenna position at reference station
rover receiver
requiresBaselineLength short to medium baselines
requiresCommunicationChannel cellular network
internet-based NTRIP
radio link
timeToFixAmbiguities typically seconds to tens of seconds
typicalHorizontalAccuracy 1–2 centimeters
typicalVerticalAccuracy 2–3 centimeters
usedIn autonomous vehicles
construction surveying
land surveying
machine control
mapping and GIS
marine navigation
precision agriculture
unmanned aerial vehicles
usesCorrectionDataFrom reference station
usesMeasurementType carrier-phase measurements

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