GGTropModel Class Reference
[GPS solution algorithms and Tropospheric]

#include <TropModel.hpp>

Inheritance diagram for GGTropModel:

[legend]Collaboration diagram for GGTropModel:

[legend]List of all members.

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Detailed Description

Tropospheric model based on Goad and Goodman(1974), "A Modified Hopfield Tropospheric Refraction Correction Model," Paper presented at the Fall Annual Meeting of the American Geophysical Union, San Francisco, December 1974, as presented in Leick, "GPS Satellite Surveying," Wiley, NY, 1990, Chapter 9 (note particularly Table 9.1).

Definition at line 357 of file TropModel.hpp.

Public Member Functions
	GGTropModel (void)
	Empty constructor.
	GGTropModel (const WxObservation &wx) throw (InvalidParameter)
	Creates a trop model, with weather observation input.
	GGTropModel (const double &T, const double &P, const double &H) throw (InvalidParameter)
	Create a tropospheric model from explicit weather data.
virtual double	dry_zenith_delay (void) const throw (InvalidTropModel)
	Compute and return the zenith delay for dry component of the troposphere.
virtual double	wet_zenith_delay (void) const throw (InvalidTropModel)
	Compute and return the zenith delay for wet component of the troposphere.
virtual double	dry_mapping_function (double elevation) const throw (InvalidTropModel)
	Compute and return the mapping function for dry component of the troposphere.
virtual double	wet_mapping_function (double elevation) const throw (InvalidTropModel)
	Compute and return the mapping function for wet component of the troposphere.
virtual void	setWeather (const double &T, const double &P, const double &H) throw (InvalidParameter)
	Re-define the tropospheric model with explicit weather data.
virtual void	setWeather (const WxObservation &wx) throw (InvalidParameter)
	Re-define the tropospheric model with explicit weather data.

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Constructor & Destructor Documentation

GGTropModel (  void   )

Empty constructor. Definition at line 293 of file TropModel.cpp.

GGTropModel (  const WxObservation &  wx  )  throw (InvalidParameter)

Creates a trop model, with weather observation input. Parameters: wx  the weather to use for this correction. Definition at line 305 of file TropModel.cpp.

GGTropModel (  const double &  T, const double &  P, const double &  H )  throw (InvalidParameter)

Create a tropospheric model from explicit weather data. Parameters: T  temperature in degrees Celsius P  atmospheric pressure in millibars H  relative humidity in percent Definition at line 316 of file TropModel.cpp.

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Member Function Documentation

double dry_mapping_function (  double  elevation  )  const throw (InvalidTropModel) [virtual]

Compute and return the mapping function for dry component of the troposphere. Parameters: elevation  Elevation of satellite as seen at receiver, in degrees Implements TropModel. Definition at line 343 of file TropModel.cpp. References WGS84Geoid::a(), gpstk::cos(), GPSTK_THROW, gpstk::sin(), and SQRT.

double dry_zenith_delay (  void   )  const throw (InvalidTropModel) [virtual]

Compute and return the zenith delay for dry component of the troposphere. Implements TropModel. Definition at line 325 of file TropModel.cpp. References GPSTK_THROW.

void setWeather (  const WxObservation &  wx  )  throw (InvalidParameter) [virtual]

Re-define the tropospheric model with explicit weather data. Typically called just before correction(). Parameters: wx  the weather to use for this correction Reimplemented from TropModel. Definition at line 436 of file TropModel.cpp.

void setWeather (  const double &  T, const double &  P, const double &  H )  throw (InvalidParameter) [virtual]

Re-define the tropospheric model with explicit weather data. Typically called initially, and whenever the weather changes. Parameters: T  temperature in degrees Celsius P  atmospheric pressure in millibars H  relative humidity in percent Reimplemented from TropModel. Definition at line 415 of file TropModel.cpp. References gpstk::exp().

double wet_mapping_function (  double  elevation  )  const throw (InvalidTropModel) [virtual]

Compute and return the mapping function for wet component of the troposphere. Parameters: elevation  Elevation of satellite as seen at receiver, in degrees Implements TropModel. Definition at line 380 of file TropModel.cpp. References WGS84Geoid::a(), gpstk::cos(), GPSTK_THROW, gpstk::sin(), and SQRT.

double wet_zenith_delay (  void   )  const throw (InvalidTropModel) [virtual]

Compute and return the zenith delay for wet component of the troposphere. Implements TropModel. Definition at line 334 of file TropModel.cpp. References GPSTK_THROW.

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The documentation for this class was generated from the following files:

• TropModel.hpp
• TropModel.cpp

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