Package org.orekit.estimation.measurements.model

Class TopocentricAzElModel

java.lang.Object

org.orekit.estimation.measurements.model.AbstractSignalBasedModel

org.orekit.estimation.measurements.model.AbstractAngularMeasurementModel

org.orekit.estimation.measurements.model.TopocentricAzElModel

public class TopocentricAzElModel
extends AbstractAngularMeasurementModel

Perfect measurement model for topocentric azimuth and elevation model. The sensor is the signal receiver and is assumed to be ground-fixed.

Since:

14.0

Author:

Romain Serra

Constructor Summary

Constructors

Constructor	Description
TopocentricAzElModel(BodyShape bodyShape, SignalTravelTimeModel signalTravelTimeModel)	Constructor with default inertial frame.
TopocentricAzElModel(Frame inertialFrame, BodyShape bodyShape, SignalTravelTimeModel signalTravelTimeModel)	Constructor.

Method Summary

Modifier and Type	Method	Description
<T extends CalculusFieldElement<T>> T[]	value(FieldGeodeticPoint<T> receiver, FieldAbsoluteDate<T> receptionDate, FieldPVCoordinatesProvider<T> emitter)	Compute theoretical measurement with FIeld.
<T extends CalculusFieldElement<T>> T[]	value(FieldGeodeticPoint<T> receiver, FieldAbsoluteDate<T> receptionDate, FieldPVCoordinatesProvider<T> emitter, FieldAbsoluteDate<T> approxEmissionDate)	Compute theoretical measurement with FIeld with guess for emission date.
double[]	value(GeodeticPoint receiver, AbsoluteDate receptionDate, PVCoordinatesProvider emitter)	Compute theoretical measurement.
double[]	value(GeodeticPoint receiver, AbsoluteDate receptionDate, PVCoordinatesProvider emitter, AbsoluteDate approxEmissionDate)	Compute theoretical measurement with guess for emission date.

Methods inherited from class org.orekit.estimation.measurements.model.AbstractAngularMeasurementModel

getEmitterToReceiverVector, getEmitterToReceiverVector

Methods inherited from class org.orekit.estimation.measurements.model.AbstractSignalBasedModel

getSignalTravelTimeModel

Methods inherited from class java.lang.Object

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

Constructor Details

TopocentricAzElModel

@DefaultDataContext
public TopocentricAzElModel(BodyShape bodyShape,
 SignalTravelTimeModel signalTravelTimeModel)

Constructor with default inertial frame.

Parameters:

bodyShape - Earth-fixed frame

signalTravelTimeModel - time delay computer

TopocentricAzElModel

public TopocentricAzElModel(Frame inertialFrame,
 BodyShape bodyShape,
 SignalTravelTimeModel signalTravelTimeModel)

Constructor.

Parameters:

inertialFrame - inertial frame needed for intermediate computations

bodyShape - Earth-fixed frame

signalTravelTimeModel - time delay computer

Method Details

value

public double[] value(GeodeticPoint receiver,
 AbsoluteDate receptionDate,
 PVCoordinatesProvider emitter)

Compute theoretical measurement.

Parameters:

receiver - receiver geodetic coordinates

receptionDate - signal reception date

emitter - signal emitter coordinates provider

Returns:

azimuth-elevation (radians)

value

public double[] value(GeodeticPoint receiver,
 AbsoluteDate receptionDate,
 PVCoordinatesProvider emitter,
 AbsoluteDate approxEmissionDate)

Compute theoretical measurement with guess for emission date.

Parameters:

receiver - receiver geodetic coordinates

receptionDate - signal reception date

emitter - signal emitter coordinates provider

approxEmissionDate - guess for the emission date (shall be adjusted by signal travel time computer)

Returns:

azimuth-elevation (radians)

value

public <T extends CalculusFieldElement<T>> T[] value(FieldGeodeticPoint<T> receiver,
 FieldAbsoluteDate<T> receptionDate,
 FieldPVCoordinatesProvider<T> emitter)

Compute theoretical measurement with FIeld.

Type Parameters:

T - field type

Parameters:

receiver - receiver geodetic coordinates

receptionDate - signal reception date

emitter - signal emitter coordinates provider

Returns:

azimuth-elevation (radians)

value

public <T extends CalculusFieldElement<T>> T[] value(FieldGeodeticPoint<T> receiver,
 FieldAbsoluteDate<T> receptionDate,
 FieldPVCoordinatesProvider<T> emitter,
 FieldAbsoluteDate<T> approxEmissionDate)

Compute theoretical measurement with FIeld with guess for emission date.

Type Parameters:

T - field type

Parameters:

receiver - receiver geodetic coordinates

receptionDate - signal reception date

emitter - signal emitter coordinates provider

approxEmissionDate - guess for the emission date (shall be adjusted by signal travel time computer)

Returns:

azimuth-elevation (radians)