Package org.orekit.gnss.attitude

Class GenericGNSS

java.lang.Object

org.orekit.gnss.attitude.GenericGNSS

All Implemented Interfaces:

AttitudeProvider, GNSSAttitudeProvider, EventDetectorsProvider

public class GenericGNSS
extends Object

Attitude providers for navigation satellites for which no specialized model is known.

Since:

9.2

Author:

Luc Maisonobe

Field Summary

Fields inherited from interface org.orekit.propagation.events.EventDetectorsProvider

DATATION_ACCURACY

Constructor Summary

Constructors

Constructor	Description
GenericGNSS(AbsoluteDate validityStart, AbsoluteDate validityEnd, ExtendedPositionProvider sun, Frame inertialFrame)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
protected TimeStampedAngularCoordinates	correctedYaw(org.orekit.gnss.attitude.GNSSAttitudeContext context)	Select the /** Compute GNSS attitude with midnight/noon yaw turn correction.
protected <T extends CalculusFieldElement<T>> TimeStampedFieldAngularCoordinates<T>	correctedYaw(org.orekit.gnss.attitude.GNSSFieldAttitudeContext<T> context)	Compute GNSS attitude with midnight/noon yaw turn correction.
<T extends CalculusFieldElement<T>> FieldAttitude<T>	getAttitude(FieldPVCoordinatesProvider<T> pvProv, FieldAbsoluteDate<T> date, Frame frame)	Compute the attitude corresponding to an orbital state.
Attitude	getAttitude(PVCoordinatesProvider pvProv, AbsoluteDate date, Frame frame)	Compute the attitude corresponding to an orbital state.
protected Frame	getInertialFrame()	Get inertial frame where velocity are computed.
protected ExtendedPositionProvider	getSun()	Get provider for Sun position.
AbsoluteDate	validityEnd()	Get end of validity for this provider.
AbsoluteDate	validityStart()	Get start of validity for this provider.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.attitudes.AttitudeProvider

getAttitudeRotation, getAttitudeRotation, getEventDetectors, getFieldEventDetectors

Methods inherited from interface org.orekit.propagation.events.EventDetectorsProvider

getEventDetectors, getFieldEventDetectors

Constructor Detail

GenericGNSS

public GenericGNSS(AbsoluteDate validityStart,
                   AbsoluteDate validityEnd,
                   ExtendedPositionProvider sun,
                   Frame inertialFrame)

Simple constructor.

Parameters:

validityStart - start of validity for this provider

validityEnd - end of validity for this provider

sun - provider for Sun position

inertialFrame - inertial frame where velocity are computed

Method Detail

correctedYaw

protected TimeStampedAngularCoordinates correctedYaw(org.orekit.gnss.attitude.GNSSAttitudeContext context)

Select the /** Compute GNSS attitude with midnight/noon yaw turn correction.

Parameters:

context - context data for attitude computation

Returns:

corrected yaw, using inertial frame as the reference

correctedYaw

protected <T extends CalculusFieldElement<T>> TimeStampedFieldAngularCoordinates<T> correctedYaw(org.orekit.gnss.attitude.GNSSFieldAttitudeContext<T> context)

Compute GNSS attitude with midnight/noon yaw turn correction.

Type Parameters:

T - type of the field elements

Parameters:

context - context data for attitude computation

Returns:

corrected yaw, using inertial frame as the reference

validityStart

public AbsoluteDate validityStart()

Get start of validity for this provider.

Specified by:

validityStart in interface GNSSAttitudeProvider

Returns:

start of validity for this provider

validityEnd

public AbsoluteDate validityEnd()

Get end of validity for this provider.

Specified by:

validityEnd in interface GNSSAttitudeProvider

Returns:

end of validity for this provider

getAttitude

public Attitude getAttitude(PVCoordinatesProvider pvProv,
                            AbsoluteDate date,
                            Frame frame)

Compute the attitude corresponding to an orbital state.

Specified by:

getAttitude in interface AttitudeProvider

Parameters:

pvProv - local position-velocity provider around current date

date - current date

frame - reference frame from which attitude is computed

Returns:

attitude on the specified date and position-velocity state

getAttitude

public <T extends CalculusFieldElement<T>> FieldAttitude<T> getAttitude(FieldPVCoordinatesProvider<T> pvProv,
                                                                        FieldAbsoluteDate<T> date,
                                                                        Frame frame)

Compute the attitude corresponding to an orbital state.

Specified by:

getAttitude in interface AttitudeProvider

Type Parameters:

T - type of the field elements

Parameters:

pvProv - local position-velocity provider around current date

date - current date

frame - reference frame from which attitude is computed

Returns:

attitude on the specified date and position-velocity state

getSun

protected ExtendedPositionProvider getSun()

Get provider for Sun position.

Returns:

provider for Sun position

Since:

12.0

getInertialFrame

protected Frame getInertialFrame()

Get inertial frame where velocity are computed.

Returns:

inertial frame where velocity are computed