Package org.orekit.propagation.analytical.gnss.data

Class FieldGPSAlmanac<T extends CalculusFieldElement<T>>

java.lang.Object

org.orekit.propagation.analytical.gnss.data.FieldGnssOrbitalElements<T,GPSAlmanac>

org.orekit.propagation.analytical.gnss.data.FieldGPSAlmanac<T>

Type Parameters:

T - type of the field elements

All Implemented Interfaces:

FieldOrbitalParameters<T>, FieldGNSSClockElements<T>, FieldTimeStamped<T>

public class FieldGPSAlmanac<T extends CalculusFieldElement<T>>
extends FieldGnssOrbitalElements<T,GPSAlmanac>

This class holds a GPS almanac as read from SEM or YUMA files.

Depending on the source (SEM or YUMA), some fields may be filled in or not. An almanac read from a YUMA file doesn't hold SVN number, average URA and satellite configuration.

Since:

13.0

Author:

Luc Maisonobe

Constructor Summary

Constructors

Constructor	Description
FieldGPSAlmanac(double angularVelocity, int weeksInCycle, TimeScales timeScales, String type, int prn, FieldGNSSDate<T> toe, FieldKeplerianOrbit<T> orbit, T[] nonKeplerian, T tgd, FieldGNSSDate<T> toc, String source, int svn, int health, int ura, int satConfiguration)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
int	getHealth()	Gets the Health status.
int	getSatConfiguration()	Gets the satellite configuration.
String	getSource()	Gets the source of this GPS almanac.
int	getSVN()	Gets the satellite "SVN" reference number.
int	getURA()	Gets the average URA number.
<U extends CalculusFieldElement<U>> FieldGPSAlmanac<U>	toField(FieldKeplerianOrbit<U> orbit, U[] nonKeplerian, Function<T,U> converter)	Create another field version of the instance.
GPSAlmanac	toNonField()	Create a non-field version of the instance.

Methods inherited from class org.orekit.propagation.analytical.gnss.data.FieldGnssOrbitalElements

getADot, getAf0, getAf1, getAf2, getAngularVelocity, getCic, getCis, getCrc, getCrs, getCuc, getCus, getCycleDuration, getDate, getDeltaN0, getDeltaN0Dot, getIDot, getOmegaDot, getOrbit, getPrn, getTgd, getTimeOfClock, getTimeOfEphemeris, getTimeScales, getType, getWeeksInCycle, isCivilianMessage, toArray

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.orekit.time.FieldTimeStamped

durationFrom, durationFrom

Constructor Details

FieldGPSAlmanac

public FieldGPSAlmanac(double angularVelocity,
 int weeksInCycle,
 TimeScales timeScales,
 String type,
 int prn,
 FieldGNSSDate<T> toe,
 FieldKeplerianOrbit<T> orbit,
 T[] nonKeplerian,
 T tgd,
 FieldGNSSDate<T> toc,
 String source,
 int svn,
 int health,
 int ura,
 int satConfiguration)

Creates a new instance.

Parameters:

angularVelocity - mean angular velocity of the Earth for the GNSS model

weeksInCycle - number of weeks in the GNSS cycle

timeScales - known time scales

type - type (null if not a navigation message)

prn - PRN number of the satellite

toe - time of ephemeris (must be consistent with orbit)

orbit - Keplerian orbit in Earth-frozen frame

nonKeplerian - 15 non-Keplerian parameters (in the order given by NonKeplerianDriversFactory

tgd - group delay differential TGD for L1-L2 correction

toc - time of clock

source - source of the almanac

svn - SVN number

health - health status

ura - average URA

satConfiguration - satellite configuration

Since:

14.0

Method Details

toNonField

public GPSAlmanac toNonField()

Create a non-field version of the instance.

Specified by:

toNonField in class FieldGnssOrbitalElements<T extends CalculusFieldElement<T>,GPSAlmanac>

Returns:

non-field version of the instance

toField

public <U extends CalculusFieldElement<U>>
FieldGPSAlmanac<U> toField(FieldKeplerianOrbit<U> orbit,
 U[] nonKeplerian,
 Function<T,U> converter)

Create another field version of the instance.

Specified by:

toField in class FieldGnssOrbitalElements<T extends CalculusFieldElement<T>,GPSAlmanac>

Type Parameters:

U - type of the new field elements

Parameters:

orbit - orbit in the correct gradient field

nonKeplerian - non-Keplerian parameters

converter - converter for remaining elements

Returns:

field version of the instance

getSource

public String getSource()

Gets the source of this GPS almanac.

Sources can be SEM or YUMA, when the almanac is read from a file.

Returns:

the source of this GPS almanac

getSVN

public int getSVN()

Gets the satellite "SVN" reference number.

Returns:

the satellite "SVN" reference number

getHealth

public int getHealth()

Gets the Health status.

Returns:

the Health status

getURA

public int getURA()

Gets the average URA number.

Returns:

the average URA number

getSatConfiguration

public int getSatConfiguration()

Gets the satellite configuration.

Returns:

the satellite configuration