Package org.orekit.signal

Class DifferencesOfSignalArrival

java.lang.Object

org.orekit.signal.DifferencesOfSignalArrival

public class DifferencesOfSignalArrival
extends Object

Class for differences of arrival. A signal is emitted and received by two different receivers: the primary one defining reference reception time and the secondary one.

Since:

14.0

Author:

Romain Serra

Constructor Summary

Constructors

Constructor	Description
DifferencesOfSignalArrival(SignalTravelTimeModel signalTravelTimeModel)	Constructor.

Method Summary

Modifier and Type	Method	Description
<T extends CalculusFieldElement<T>> T[]	computeDelays(Frame frame, FieldVector3D<T> primaryReceiverPosition, FieldAbsoluteDate<T> receptionDate, FieldPVCoordinatesProvider<T> secondaryReceiver, FieldAbsoluteDate<T> approxSecondaryReception, FieldPVCoordinatesProvider<T> emitter, FieldAbsoluteDate<T> approxEmissionDate)	Compute (positive) delays from emission.
<T extends CalculusFieldElement<T>> T[]	computeDelays(Frame frame, FieldVector3D<T> primaryReceiverPosition, FieldAbsoluteDate<T> receptionDate, FieldPVCoordinatesProvider<T> secondaryReceiver, FieldPVCoordinatesProvider<T> emitter)	Compute (positive) delays from emission without guesses.
double[]	computeDelays(Frame frame, Vector3D primaryReceiverPosition, AbsoluteDate receptionDate, PVCoordinatesProvider secondaryReceiver, AbsoluteDate approxSecondaryReception, PVCoordinatesProvider emitter, AbsoluteDate approxEmissionDate)	Compute (positive) delays from emission.
double[]	computeDelays(Frame frame, Vector3D primaryReceiverPosition, AbsoluteDate receptionDate, PVCoordinatesProvider secondaryReceiver, PVCoordinatesProvider emitter)	Compute (positive) delays from emission without guesses.

Methods inherited from class java.lang.Object

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

Constructor Detail

DifferencesOfSignalArrival

public DifferencesOfSignalArrival(SignalTravelTimeModel signalTravelTimeModel)

Constructor.

Parameters:

signalTravelTimeModel - time delay computer

Method Detail

computeDelays

public double[] computeDelays(Frame frame,
                              Vector3D primaryReceiverPosition,
                              AbsoluteDate receptionDate,
                              PVCoordinatesProvider secondaryReceiver,
                              AbsoluteDate approxSecondaryReception,
                              PVCoordinatesProvider emitter,
                              AbsoluteDate approxEmissionDate)

Compute (positive) delays from emission.

Parameters:

frame - frame where position is given

primaryReceiverPosition - primary receiver position (at primary reception)

receptionDate - signal primary reception date

secondaryReceiver - signal secondary receiver coordinates provider

approxSecondaryReception - guess for the secondary reception date

emitter - signal initial emitter coordinates provider

approxEmissionDate - guess for the emission date

Returns:

delays to primary and secondary respectively (s)

computeDelays

public double[] computeDelays(Frame frame,
                              Vector3D primaryReceiverPosition,
                              AbsoluteDate receptionDate,
                              PVCoordinatesProvider secondaryReceiver,
                              PVCoordinatesProvider emitter)

Compute (positive) delays from emission without guesses.

Parameters:

frame - frame where position is given

primaryReceiverPosition - primary receiver position (at primary reception)

receptionDate - signal primary reception date

secondaryReceiver - signal secondary receiver coordinates provider

emitter - signal initial emitter coordinates provider

Returns:

delays to primary and secondary respectively (s)

computeDelays

public <T extends CalculusFieldElement<T>> T[] computeDelays(Frame frame,
                                                             FieldVector3D<T> primaryReceiverPosition,
                                                             FieldAbsoluteDate<T> receptionDate,
                                                             FieldPVCoordinatesProvider<T> secondaryReceiver,
                                                             FieldAbsoluteDate<T> approxSecondaryReception,
                                                             FieldPVCoordinatesProvider<T> emitter,
                                                             FieldAbsoluteDate<T> approxEmissionDate)

Compute (positive) delays from emission.

Type Parameters:

T - field type

Parameters:

frame - frame where position is given

primaryReceiverPosition - primary receiver position (at primary reception)

receptionDate - signal primary reception date

secondaryReceiver - signal secondary receiver coordinates provider

approxSecondaryReception - guess for the secondary reception date

emitter - signal initial emitter coordinates provider

approxEmissionDate - guess for the emission date

Returns:

delays to primary and secondary respectively (s)

computeDelays

public <T extends CalculusFieldElement<T>> T[] computeDelays(Frame frame,
                                                             FieldVector3D<T> primaryReceiverPosition,
                                                             FieldAbsoluteDate<T> receptionDate,
                                                             FieldPVCoordinatesProvider<T> secondaryReceiver,
                                                             FieldPVCoordinatesProvider<T> emitter)

Compute (positive) delays from emission without guesses.

Type Parameters:

T - field type

Parameters:

frame - frame where position is given

primaryReceiverPosition - primary receiver position (at primary reception)

receptionDate - signal primary reception date

secondaryReceiver - signal secondary receiver coordinates provider

emitter - signal initial emitter coordinates provider

Returns:

delays to primary and secondary respectively (s)