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

Class ITURP834PathDelay

java.lang.Object

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

All Implemented Interfaces:

TroposphericModel, 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.ParameterDriversProvider

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

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 ParameterDriversProvider

Returns:

drivers for parameters