Package org.orekit.models.earth.troposphere

Class AbstractVienna

java.lang.Object

org.orekit.models.earth.troposphere.AbstractVienna

All Implemented Interfaces:

TroposphereMappingFunction, TroposphericModel, ParameterDriversProvider

Direct Known Subclasses:

ViennaOne, ViennaThree

public abstract class AbstractVienna
extends Object
implements TroposphericModel, TroposphereMappingFunction

The Vienna tropospheric delay model for radio techniques.

Since:

12.1

Author:

Bryan Cazabonne, Luc Maisonobe

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractVienna(ViennaAProvider aProvider, AzimuthalGradientProvider gProvider, TroposphericModel zenithDelayProvider, TimeScale utc)	Build a new instance.

Method Summary

Modifier and Type	Method	Description
protected ViennaAProvider	getAProvider()	Get provider for Vienna ah and aw coefficients.
protected int	getDayOfYear(AbsoluteDate date)	Get day of year.
List<ParameterDriver>	getParametersDrivers()	Get the drivers for parameters.
<T extends CalculusFieldElement<T>> FieldTroposphericDelay<T>	pathDelay(FieldTrackingCoordinates<T> trackingCoordinates, FieldGeodeticPoint<T> point, FieldPressureTemperatureHumidity<T> weather, T[] parameters, FieldAbsoluteDate<T> date)	Calculates the tropospheric path delay for the signal path from a ground station to a satellite.
TroposphericDelay	pathDelay(TrackingCoordinates trackingCoordinates, GeodeticPoint point, PressureTemperatureHumidity weather, double[] parameters, AbsoluteDate date)	Calculates the tropospheric path delay for the signal path from a ground station to a satellite.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported

Methods inherited from interface org.orekit.models.earth.troposphere.TroposphereMappingFunction

mappingFactors, mappingFactors

Constructor Detail

AbstractVienna

protected AbstractVienna(ViennaAProvider aProvider,
                         AzimuthalGradientProvider gProvider,
                         TroposphericModel zenithDelayProvider,
                         TimeScale utc)

Build a new instance.

Parameters:

aProvider - provider for a_h and a_w coefficients

gProvider - provider for AzimuthalGradientCoefficients and FieldAzimuthalGradientCoefficients

zenithDelayProvider - provider for zenith delays

utc - UTC time scale

Method Detail

pathDelay

public TroposphericDelay pathDelay(TrackingCoordinates trackingCoordinates,
                                   GeodeticPoint point,
                                   PressureTemperatureHumidity weather,
                                   double[] parameters,
                                   AbsoluteDate date)

Calculates the tropospheric path delay for the signal path from a ground station to a satellite.

Specified by:

pathDelay in interface TroposphericModel

Parameters:

trackingCoordinates - tracking coordinates of the satellite

point - station location

weather - weather parameters for constant default values)

parameters - tropospheric model parameters

date - current date

Returns:

the path delay due to the troposphere

pathDelay

public <T extends CalculusFieldElement<T>> FieldTroposphericDelay<T> pathDelay(FieldTrackingCoordinates<T> trackingCoordinates,
                                                                               FieldGeodeticPoint<T> point,
                                                                               FieldPressureTemperatureHumidity<T> weather,
                                                                               T[] parameters,
                                                                               FieldAbsoluteDate<T> date)

Calculates the tropospheric path delay for the signal path from a ground station to a satellite.

Specified by:

pathDelay in interface TroposphericModel

Type Parameters:

T - type of the elements

Parameters:

trackingCoordinates - tracking coordinates of the satellite

point - station location

weather - weather parameters for constant default values)

parameters - tropospheric model parameters at current date

date - current date

Returns:

the path delay due to the troposphere

getParametersDrivers

public List<ParameterDriver> getParametersDrivers()

Get the drivers for parameters.

Specified by:

getParametersDrivers in interface ParameterDriversProvider

Returns:

drivers for parameters

getAProvider

protected ViennaAProvider getAProvider()

Get provider for Vienna a_h and a_w coefficients.

Returns:

provider for Vienna a_h and a_w coefficients

getDayOfYear

protected int getDayOfYear(AbsoluteDate date)

Get day of year.

Parameters:

date - date

Returns:

day of year