public class SaastamoinenModel extends Object implements TroposphericDelayModel
δ = 2.277e-3 / cos z * (P + (1255 / T + 0.05) * e - B * tan² z) + δRwith the following input data provided to the model:
The model supports custom δR correction terms to be read from a
configuration file (saastamoinen-correction.txt) via the
DataProvidersManager
.
Modifier and Type | Field and Description |
---|---|
static String |
DELTA_R_FILE_NAME
Default file name for δR correction term table.
|
Constructor and Description |
---|
SaastamoinenModel(double t0,
double p0,
double r0)
Deprecated.
since 7.1, replaced with
SaastamoinenModel(double, double, double, String) |
SaastamoinenModel(double t0,
double p0,
double r0,
String deltaRFileName)
Create a new Saastamoinen model for the troposphere using the given
environmental conditions.
|
Modifier and Type | Method and Description |
---|---|
double |
calculatePathDelay(double elevation,
double height)
Calculates the tropospheric path delay for the signal path from a ground
station to a satellite.
|
double |
calculateSignalDelay(double elevation,
double height)
Calculates the tropospheric signal delay for the signal path from a
ground station to a satellite.
|
static SaastamoinenModel |
getStandardModel()
Create a new Saastamoinen model using a standard atmosphere model.
|
public static final String DELTA_R_FILE_NAME
@Deprecated public SaastamoinenModel(double t0, double p0, double r0) throws OrekitException
SaastamoinenModel(double, double, double, String)
t0
- the temperature at the station [K]p0
- the atmospheric pressure at the station [mbar]r0
- the humidity at the station [fraction] (50% -> 0.5)OrekitException
- if δR correction term table cannot be loadedpublic SaastamoinenModel(double t0, double p0, double r0, String deltaRFileName) throws OrekitException
t0
- the temperature at the station [K]p0
- the atmospheric pressure at the station [mbar]r0
- the humidity at the station [fraction] (50% -> 0.5)deltaRFileName
- regular expression for filename containing δR
correction term table (typically DELTA_R_FILE_NAME
), if null
default values from the reference book are usedOrekitException
- if δR correction term table cannot be loadedpublic static SaastamoinenModel getStandardModel() throws OrekitException
OrekitException
- if δR correction term table cannot be loadedpublic double calculatePathDelay(double elevation, double height)
calculatePathDelay
in interface TroposphericDelayModel
elevation
- the elevation of the satellite in degreesheight
- the height of the station in m above sea levelpublic double calculateSignalDelay(double elevation, double height)
calculatePathDelay(double, double)
/Constants.SPEED_OF_LIGHT
calculateSignalDelay
in interface TroposphericDelayModel
elevation
- the elevation of the satellite in degreesheight
- the height of the station in m above sea levelCopyright © 2002-2016 CS Systèmes d'information. All rights reserved.