Package org.orekit.estimation.measurements.modifiers

Class ShapiroModel

java.lang.Object

org.orekit.estimation.measurements.modifiers.ShapiroModel

public class ShapiroModel
extends Object

Class computing Shapiro time delay.

Shapiro time delay is a relativistic effect due to gravity.

Since:

14.0

Author:

Romain Serra

Constructor Summary

Constructors

Constructor	Description
ShapiroModel(double gm)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
<T extends CalculusFieldElement<T>> T	computeDelay(FieldVector3D<T> positionEmitter, FieldVector3D<T> positionReceiver)	Compute Shapiro path delay between two points in a gravity field.
double	computeDelay(Vector3D positionEmitter, Vector3D positionReceiver)	Compute Shapiro path delay between two points in a gravity field.
<T extends CalculusFieldElement<T>> T	computeEquivalentRange(FieldVector3D<T> positionEmitter, FieldVector3D<T> positionReceiver)	Compute Shapiro path range effect between two points in a gravity field.
double	computeEquivalentRange(Vector3D positionEmitter, Vector3D positionReceiver)	Compute Shapiro path range effect between two points in a gravity field.

Methods inherited from class java.lang.Object

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

Constructor Detail

ShapiroModel

public ShapiroModel(double gm)

Simple constructor.

Parameters:

gm - gravitational constant for main body in signal path vicinity.

Method Detail

computeEquivalentRange

public double computeEquivalentRange(Vector3D positionEmitter,
                                     Vector3D positionReceiver)

Compute Shapiro path range effect between two points in a gravity field.

Parameters:

positionEmitter - position of emitter in body-centered frame

positionReceiver - position of receiver in body-centered frame

Returns:

extra fictitious distance (m)

computeDelay

public double computeDelay(Vector3D positionEmitter,
                           Vector3D positionReceiver)

Compute Shapiro path delay between two points in a gravity field.

Parameters:

positionEmitter - position of emitter in body-centered frame

positionReceiver - position of receiver in body-centered frame

Returns:

time delay (s)

computeEquivalentRange

public <T extends CalculusFieldElement<T>> T computeEquivalentRange(FieldVector3D<T> positionEmitter,
                                                                    FieldVector3D<T> positionReceiver)

Compute Shapiro path range effect between two points in a gravity field.

Type Parameters:

T - type of the field elements

Parameters:

positionEmitter - position of emitter in body-centered frame

positionReceiver - position of receiver in body-centered frame

Returns:

extra fictitious distance (m)

computeDelay

public <T extends CalculusFieldElement<T>> T computeDelay(FieldVector3D<T> positionEmitter,
                                                          FieldVector3D<T> positionReceiver)

Compute Shapiro path delay between two points in a gravity field.

Type Parameters:

T - type of the field elements

Parameters:

positionEmitter - position of emitter in body-centered frame

positionReceiver - position of receiver in body-centered frame

Returns:

time delay (s)