org.orekit.estimation.measurements.modifiers

Class RelativisticJ2ClockPhaseModifier

java.lang.Object

org.orekit.estimation.measurements.modifiers.AbstractRelativisticJ2ClockModifier

org.orekit.estimation.measurements.modifiers.RelativisticJ2ClockPhaseModifier

All Implemented Interfaces:

EstimationModifier<Phase>, ParameterDriversProvider

public class RelativisticJ2ClockPhaseModifier
extends AbstractRelativisticJ2ClockModifier
implements EstimationModifier<Phase>

Class modifying theoretical phase measurements with relativistic J2 clock correction.

Relativistic clock correction of the effects caused by the oblateness of Earth on the gravity potential.

The time delay caused by this effect is computed based on the orbital parameters of the emitter's orbit.

Since:

11.2

Author:

Louis Aucouturier

See Also:

"Teunissen, Peter, and Oliver Montenbruck, eds. Springer handbook of global navigation satellite systems. Chapter 19.2. Equation 19.18 Springer, 2017."

Constructor Summary

Constructors

Constructor and Description
RelativisticJ2ClockPhaseModifier(double gm, double c20, double equatorialRadius) Modifier constructor.

Method Summary

Modifier and Type	Method and Description
List<ParameterDriver>	getParametersDrivers() Get the drivers for parameters.
void	modifyWithoutDerivatives(EstimatedMeasurementBase<Phase> estimated) Apply a modifier to an estimated measurement without derivatives.

Methods inherited from class org.orekit.estimation.measurements.modifiers.AbstractRelativisticJ2ClockModifier

relativisticJ2Correction

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.EstimationModifier

modify

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

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

Constructor Detail

RelativisticJ2ClockPhaseModifier

public RelativisticJ2ClockPhaseModifier(double gm,
                                        double c20,
                                        double equatorialRadius)

Modifier constructor.

Parameters:

gm - Earth gravitational constant (mu) in m³/s².

c20 - Earth un-normalized second zonal coefficient (Signed J2 constant, is negative) (Typical value -1.0826e-3).

equatorialRadius - Earth equatorial radius in m.

Method Detail

getParametersDrivers

public List<ParameterDriver> getParametersDrivers()

Get the drivers for parameters.

Specified by:

getParametersDrivers in interface ParameterDriversProvider

Returns:

drivers for parameters

modifyWithoutDerivatives

public void modifyWithoutDerivatives(EstimatedMeasurementBase<Phase> estimated)

Apply a modifier to an estimated measurement without derivatives.

Specified by:

modifyWithoutDerivatives in interface EstimationModifier<Phase>

Parameters:

estimated - estimated measurement to modify