fr.cnes.sirius.patrius.groundstation

Class GeometricStationAntenna

java.lang.Object

fr.cnes.sirius.patrius.groundstation.GeometricStationAntenna

All Implemented Interfaces:

PVCoordinatesProvider, Serializable

public class GeometricStationAntenna
extends Object
implements PVCoordinatesProvider

Class representing an a geometric model for a ground station antenna.
It is used in reverse station visibility event detection.

Since:

1.2

Version:

$Id$

Author:

Thomas Trapier

See Also:

StationToSatMutualVisibilityDetector, Serialized Form

Concurrency :

not thread-safe

Concurrency comment :

link to the tree of frames

Constructor Summary

Constructors

Constructor and Description
GeometricStationAntenna(TopocentricFrame topoFrame, double[][] azimElevMask) Constructor of the ground station antenna (for reverse visibility detection)
GeometricStationAntenna(TopocentricFrame topoFrame, IFieldOfView fieldOfView) Constructor of the ground station antenna (for reverse visibility detection)

Method Summary

Modifier and Type	Method and Description
IFieldOfView	getFOV()
Frame	getNativeFrame(AbsoluteDate date) Get the native frame, i.e. the raw frame in which PVCoordinates are expressed before transformation to user output frame.
PVCoordinates	getPVCoordinates(AbsoluteDate date, Frame frame) Get the PVCoordinates of the station antenna in the selected frame.
TopocentricFrame	getTopoFrame()

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometricStationAntenna

public GeometricStationAntenna(TopocentricFrame topoFrame,
                               IFieldOfView fieldOfView)

Constructor of the ground station antenna (for reverse visibility detection)

Parameters:

topoFrame - topocentric frame of the station

fieldOfView - sensor field of view in defined in the topocentric frame

GeometricStationAntenna

public GeometricStationAntenna(TopocentricFrame topoFrame,
                               double[][] azimElevMask)

Constructor of the ground station antenna (for reverse visibility detection)

Parameters:

topoFrame - topocentric frame of the station

azimElevMask - the azimuth - elevation mask (rad)

Method Detail

getTopoFrame

public TopocentricFrame getTopoFrame()

Returns:

the station topocentric frame

getFOV

public IFieldOfView getFOV()

Returns:

the field of view

getPVCoordinates

public PVCoordinates getPVCoordinates(AbsoluteDate date,
                                      Frame frame)
                               throws PatriusException

Get the PVCoordinates of the station antenna in the selected frame.

Specified by:

getPVCoordinates in interface PVCoordinatesProvider

Parameters:

date - current date

frame - the frame where to define the position

Returns:

position/velocity of the body (m and m/s)

Throws:

PatriusException - if position cannot be computed in given frame

getNativeFrame

public Frame getNativeFrame(AbsoluteDate date)
                     throws PatriusException

Get the native frame, i.e. the raw frame in which PVCoordinates are expressed before transformation to user output frame.

Specified by:

getNativeFrame in interface PVCoordinatesProvider

Parameters:

date - a date

Returns:

the native frame

Throws:

PatriusException - thrown if native frame is undefined or unknown