Package org.orekit.estimation.measurements.gnss

Class AbstractOnBoardMeasurement<T extends ObservedMeasurement<T>>

java.lang.Object

org.orekit.estimation.measurements.AbstractMeasurement<T>

org.orekit.estimation.measurements.gnss.AbstractOnBoardMeasurement<T>

Type Parameters:

T - type of the measurement

All Implemented Interfaces:

Comparable<ComparableMeasurement>, ComparableMeasurement, ObservedMeasurement<T>, TimeStamped, ParameterDriversProvider

Direct Known Subclasses:

AbstractInterSatellitesMeasurement, AbstractOneWayGNSSMeasurement

public abstract class AbstractOnBoardMeasurement<T extends ObservedMeasurement<T>>
extends AbstractMeasurement<T>

Base class modeling a measurement where receiver is a satellite.

Since:

12.1

Author:

Luc Maisonobe

Constructor Summary

Constructors

Constructor	Description
AbstractOnBoardMeasurement(AbsoluteDate date, double observed, double sigma, double baseWeight, List<ObservableSatellite> satellites)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected OnBoardCommonParametersWithDerivatives	computeCommonParametersWith(SpacecraftState[] states, boolean clockOffsetAlreadyApplied)	Compute common estimation parameters.
protected OnBoardCommonParametersWithoutDerivatives	computeCommonParametersWithout(SpacecraftState[] states, boolean clockOffsetAlreadyApplied)	Compute common estimation parameters.
protected abstract QuadraticClockModel	getRemoteClock()	Get emitting satellite clock provider.
protected QuadraticFieldClockModel<Gradient>	getRemoteClock(int freeParameters, Map<String,Integer> indices)	Get emitting satellite clock provider.
protected abstract PVCoordinatesProvider	getRemotePV(SpacecraftState[] states)	Get emitting satellite position/velocity provider.
protected abstract FieldPVCoordinatesProvider<Gradient>	getRemotePV(SpacecraftState[] states, int freeParameters)	Get emitting satellite position/velocity provider.

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, theoreticalEvaluation, theoreticalEvaluationWithoutDerivatives

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.orekit.estimation.measurements.ComparableMeasurement

compareTo

Methods inherited from interface org.orekit.estimation.measurements.ObservedMeasurement

estimateWithoutDerivatives, getMeasurementType

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported

Methods inherited from interface org.orekit.time.TimeStamped

durationFrom

Constructor Detail

AbstractOnBoardMeasurement

public AbstractOnBoardMeasurement(AbsoluteDate date,
                                  double observed,
                                  double sigma,
                                  double baseWeight,
                                  List<ObservableSatellite> satellites)

Constructor.

Parameters:

date - date of the measurement

observed - observed value

sigma - theoretical standard deviation

baseWeight - base weight

satellites - satellites related to this measurement

Method Detail

getRemoteClock

protected abstract QuadraticClockModel getRemoteClock()

Get emitting satellite clock provider.

Returns:

emitting satellite clock provider

getRemotePV

protected abstract PVCoordinatesProvider getRemotePV(SpacecraftState[] states)

Get emitting satellite position/velocity provider.

Parameters:

states - states of all spacecraft involved in the measurement

Returns:

emitting satellite position/velocity provider

getRemotePV

protected abstract FieldPVCoordinatesProvider<Gradient> getRemotePV(SpacecraftState[] states,
                                                                    int freeParameters)

Get emitting satellite position/velocity provider.

Parameters:

states - states of all spacecraft involved in the measurement

freeParameters - total number of free parameters in the gradient

Returns:

emitting satellite position/velocity provider

getRemoteClock

protected QuadraticFieldClockModel<Gradient> getRemoteClock(int freeParameters,
                                                            Map<String,Integer> indices)

Get emitting satellite clock provider.

Parameters:

freeParameters - total number of free parameters in the gradient

indices - indices of the differentiation parameters in derivatives computations, must be span name and not driver name

Returns:

emitting satellite clock provider

computeCommonParametersWithout

protected OnBoardCommonParametersWithoutDerivatives computeCommonParametersWithout(SpacecraftState[] states,
                                                                                   boolean clockOffsetAlreadyApplied)

Compute common estimation parameters.

Parameters:

states - states of all spacecraft involved in the measurement

clockOffsetAlreadyApplied - if true, the specified date is as read by the receiver clock (i.e. clock offset not compensated), if false, the specified date was already compensated and is a physical absolute date

Returns:

common parameters

computeCommonParametersWith

protected OnBoardCommonParametersWithDerivatives computeCommonParametersWith(SpacecraftState[] states,
                                                                             boolean clockOffsetAlreadyApplied)

Compute common estimation parameters.

Parameters:

states - states of all spacecraft involved in the measurement

clockOffsetAlreadyApplied - if true, the specified date is as read by the receiver clock (i.e. clock offset not compensated), if false, the specified date was already compensated and is a physical absolute date

Returns:

common parameters