Package org.orekit.models.earth.troposphere

This package provides models that simulate the impact of the troposphere.

The impact of the troposphere is quantify via the path delay for the signal from a ground station to a satellite. Different ways are used to compute the tropospheric delay:

• Classical empirical computation
• Empirical computation by spliting the delay into hydrostatic and non-hydrostatic parts
• Estimation of the total zenith delay

Author:

Bryan Cazabonne

Interface Summary

Interface	Description
AzimuthalGradientProvider	Provider for AzimuthalGradientCoefficients and FieldAzimuthalGradientCoefficients.
TroposphereMappingFunction	Interface for mapping functions used in the tropospheric delay computation.
TroposphericModel	Defines a tropospheric model, used to calculate the path delay imposed to electro-magnetic signals between an orbital satellite and a ground station.
ViennaAProvider	Provider for ViennaOne and ViennaThree coefficients ah and aw.

Class Summary

Class	Description
AbstractChaoMappingFunction	Chao mapping function for radio wavelengths.
AbstractVienna	The Vienna tropospheric delay model for radio techniques.
AskneNordiusModel	The Askne Nordius model.
AzimuthalGradientCoefficients	Container for the azimuthal gradient coefficients gnh, geh, gnw and gew.
CanonicalSaastamoinenModel	The canonical Saastamoinen model.
ChaoMappingFunction	Chao mapping function for radio wavelengths.
ConstantAzimuthalGradientProvider	Constant provider for AzimuthalGradientCoefficients and FieldAzimuthalGradientCoefficients.
ConstantTroposphericModel	Defines a constant tropospheric model.
ConstantViennaAProvider	Provider for constant Vienna A coefficients.
DummyMappingFunction	Dummy mapping function.
EstimatedModel	An estimated tropospheric model.
FieldAzimuthalGradientCoefficients<T extends CalculusFieldElement<T>>	Container for the azimuthal gradient coefficients gnh, geh, gnw and gew.
FieldTroposphericDelay<T extends CalculusFieldElement<T>>	Container for tropospheric delay.
FieldViennaACoefficients<T extends CalculusFieldElement<T>>	Container for the ViennaOne and ViennaThree coefficients ah and aw.
FixedTroposphericDelay	A static tropospheric model that interpolates the actual tropospheric delay based on values read from a configuration file (tropospheric-delay.txt) via the DataProvidersManager.
GlobalMappingFunctionModel	The Global Mapping Function model for radio techniques.
MariniMurray	The Marini-Murray tropospheric delay model for laser ranging.
MendesPavlisModel	The Mendes - Pavlis tropospheric delay model for optical techniques.
ModifiedHopfieldModel	The modified Hopfield model.
ModifiedSaastamoinenModel	The modified Saastamoinen model.
NiellMappingFunctionModel	The Niell Mapping Function model for radio wavelengths.
RevisedChaoMappingFunction	Chao mapping function for radio wavelengths.
TimeSpanEstimatedModel	Time span estimated tropospheric model.
TroposphericDelay	Container for tropospheric delay.
TroposphericModelUtils	Utility class for tropospheric models.
ViennaACoefficients	Container for the ViennaOne and ViennaThree coefficients ah and aw.
ViennaModelCoefficientsLoader	Loads Vienna tropospheric coefficients a given input stream.
ViennaOne	The Vienna 1 tropospheric delay model for radio techniques.
ViennaThree	The Vienna 3 tropospheric delay model for radio techniques.

Enum Summary

Enum	Description
ViennaModelType	Enumerate for Vienna tropospheric model 1 and 3.