Package org.orekit.models.earth.troposphere.iturp834

Class ITURP834PathDelay

java.lang.Object

org.orekit.models.earth.troposphere.iturp834.ITURP834PathDelay

All Implemented Interfaces:

TroposphericModel, BaseParameterDriversProvider<ParameterDriver,ParameterObserver>, ParameterDriversProvider

public class ITURP834PathDelay
extends Object
implements TroposphericModel

The ITU-R P.834 tropospheric model.

This class implements the excess radio path length part of the model, i.e. section 6 of the recommendation. The ray bending part of the model, i.e. section 1 of the recommendation, is implemented in the ITURP834AtmosphericRefraction class.

Since:

13.0

Author:

Luc Maisonobe

See Also:

• ITURP834WeatherParametersProvider
• ITURP834MappingFunction
• P.834 : Effects of tropospheric refraction on radiowave propagation

Constructor Summary

Constructors

Constructor	Description
ITURP834PathDelay(PressureTemperatureHumidityProvider pthProvider, TimeScale utc)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
List<ParameterDriver>	getParametersDrivers()	Get the drivers for parameters.
<T extends CalculusFieldElement<T>> FieldTroposphericDelay<T>	pathDelay(FieldTrackingCoordinates<T> trackingCoordinates, FieldGeodeticPoint<T> point, 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, 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.drivers.BaseParameterDriversProvider

getParameterDriver, getParameterDriverWithSubstring, isSupported

Methods inherited from interface org.orekit.utils.drivers.ParameterDriversProvider

getParameters, getParameters

Constructor Details

ITURP834PathDelay

public ITURP834PathDelay(PressureTemperatureHumidityProvider pthProvider,
 TimeScale utc)

Simple constructor.

Parameters:

pthProvider - provider for pressure, temperature and humidity

utc - UTC time scale

Method Details

pathDelay

public TroposphericDelay pathDelay(TrackingCoordinates trackingCoordinates,
 GeodeticPoint point,
 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

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,
 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

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 BaseParameterDriversProvider<ParameterDriver,ParameterObserver>

Returns:

drivers for parameters