Class OneWayGNSSPhase
- java.lang.Object
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- org.orekit.estimation.measurements.AbstractMeasurement<T>
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- org.orekit.estimation.measurements.gnss.AbstractOnBoardMeasurement<T>
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- org.orekit.estimation.measurements.gnss.AbstractOneWayGNSSMeasurement<OneWayGNSSPhase>
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- org.orekit.estimation.measurements.gnss.OneWayGNSSPhase
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- All Implemented Interfaces:
Comparable<ComparableMeasurement>
,ComparableMeasurement
,ObservedMeasurement<OneWayGNSSPhase>
,TimeStamped
,ParameterDriversProvider
public class OneWayGNSSPhase extends AbstractOneWayGNSSMeasurement<OneWayGNSSPhase>
One-way GNSS phase measurement.This class can be used in precise orbit determination applications for modeling a phase measurement between a GNSS satellite (emitter) and a LEO satellite (receiver).
The one-way GNSS phase measurement assumes knowledge of the orbit and the clock offset of the emitting GNSS satellite. For instance, it is possible to use a SP3 file or a GNSS navigation message to recover the satellite's orbit and clock.
This class is very similar to
InterSatellitesPhase
measurement class. However, using the one-way GNSS phase measurement, the orbit and clock of the emitting GNSS satellite are NOT estimated simultaneously with LEO satellite coordinates.- Since:
- 10.3
- Author:
- Bryan Cazabonne
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Field Summary
Fields Modifier and Type Field Description static String
AMBIGUITY_NAME
Deprecated.as of 12.1 not used anymorestatic String
MEASUREMENT_TYPE
Type of the measurement.
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Constructor Summary
Constructors Constructor Description OneWayGNSSPhase(PVCoordinatesProvider remote, double dtRemote, AbsoluteDate date, double phase, double wavelength, double sigma, double baseWeight, ObservableSatellite local)
OneWayGNSSPhase(PVCoordinatesProvider remote, String remoteName, QuadraticClockModel remoteClock, AbsoluteDate date, double phase, double wavelength, double sigma, double baseWeight, ObservableSatellite local, AmbiguityCache cache)
Simple constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AmbiguityDriver
getAmbiguityDriver()
Get the driver for phase ambiguity.double
getWavelength()
Get the wavelength.protected EstimatedMeasurement<OneWayGNSSPhase>
theoreticalEvaluation(int iteration, int evaluation, SpacecraftState[] states)
Estimate the theoretical value.protected EstimatedMeasurementBase<OneWayGNSSPhase>
theoreticalEvaluationWithoutDerivatives(int iteration, int evaluation, SpacecraftState[] states)
Estimate the theoretical value without derivatives.-
Methods inherited from class org.orekit.estimation.measurements.gnss.AbstractOneWayGNSSMeasurement
getRemoteClock, getRemotePV, getRemotePV
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Methods inherited from class org.orekit.estimation.measurements.gnss.AbstractOnBoardMeasurement
computeCommonParametersWith, computeCommonParametersWithout, getRemoteClock
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Methods inherited from class org.orekit.estimation.measurements.AbstractMeasurement
addModifier, addParameterDriver, estimate, estimateWithoutDerivatives, getBaseWeight, getCoordinates, getDate, getDimension, getModifiers, getObservedValue, getParametersDrivers, getSatellites, getTheoreticalStandardDeviation, isEnabled, setEnabled, signalTimeOfFlight, signalTimeOfFlight, signalTimeOfFlight, signalTimeOfFlight, signalTimeOfFlight, signalTimeOfFlight
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.orekit.estimation.measurements.ComparableMeasurement
compareTo
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Methods inherited from interface org.orekit.estimation.measurements.ObservedMeasurement
estimateWithoutDerivatives, getMeasurementType
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Methods inherited from interface org.orekit.utils.ParameterDriversProvider
getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported
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Methods inherited from interface org.orekit.time.TimeStamped
durationFrom
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Field Detail
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MEASUREMENT_TYPE
public static final String MEASUREMENT_TYPE
Type of the measurement.- See Also:
- Constant Field Values
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AMBIGUITY_NAME
@Deprecated public static final String AMBIGUITY_NAME
Deprecated.as of 12.1 not used anymoreName for ambiguity driver.- See Also:
- Constant Field Values
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Constructor Detail
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OneWayGNSSPhase
@Deprecated public OneWayGNSSPhase(PVCoordinatesProvider remote, double dtRemote, AbsoluteDate date, double phase, double wavelength, double sigma, double baseWeight, ObservableSatellite local)
Deprecated.Simple constructor.- Parameters:
remote
- provider for GNSS satellite which simply emits the signaldtRemote
- clock offset of the GNSS satellite, in secondsdate
- date of the measurementphase
- observed value, in cycleswavelength
- phase observed value wavelength, in meterssigma
- theoretical standard deviationbaseWeight
- base weightlocal
- satellite which receives the signal and perform the measurement
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OneWayGNSSPhase
public OneWayGNSSPhase(PVCoordinatesProvider remote, String remoteName, QuadraticClockModel remoteClock, AbsoluteDate date, double phase, double wavelength, double sigma, double baseWeight, ObservableSatellite local, AmbiguityCache cache)
Simple constructor.- Parameters:
remote
- provider for GNSS satellite which simply emits the signalremoteName
- name of the remoteremoteClock
- clock offset of the GNSS satellitedate
- date of the measurementphase
- observed value, in cycleswavelength
- phase observed value wavelength, in meterssigma
- theoretical standard deviationbaseWeight
- base weightlocal
- satellite which receives the signal and perform the measurementcache
- from which ambiguity drive should come- Since:
- 12.1
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Method Detail
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getWavelength
public double getWavelength()
Get the wavelength.- Returns:
- wavelength (m)
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getAmbiguityDriver
public AmbiguityDriver getAmbiguityDriver()
Get the driver for phase ambiguity.- Returns:
- the driver for phase ambiguity
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theoreticalEvaluationWithoutDerivatives
protected EstimatedMeasurementBase<OneWayGNSSPhase> theoreticalEvaluationWithoutDerivatives(int iteration, int evaluation, SpacecraftState[] states)
Estimate the theoretical value without derivatives.The theoretical value does not have any modifiers applied.
- Specified by:
theoreticalEvaluationWithoutDerivatives
in classAbstractMeasurement<OneWayGNSSPhase>
- Parameters:
iteration
- iteration numberevaluation
- evaluation numberstates
- orbital states at measurement date- Returns:
- theoretical value
- See Also:
AbstractMeasurement.estimate(int, int, SpacecraftState[])
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theoreticalEvaluation
protected EstimatedMeasurement<OneWayGNSSPhase> theoreticalEvaluation(int iteration, int evaluation, SpacecraftState[] states)
Estimate the theoretical value.The theoretical value does not have any modifiers applied.
- Specified by:
theoreticalEvaluation
in classAbstractMeasurement<OneWayGNSSPhase>
- Parameters:
iteration
- iteration numberevaluation
- evaluation numberstates
- orbital states at measurement date- Returns:
- theoretical value
- See Also:
AbstractMeasurement.estimate(int, int, SpacecraftState[])
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