org.ka2ddo.gps

Class SatelliteCatalog

java.lang.Object

org.ka2ddo.gps.SatelliteCatalog

public class SatelliteCatalog
extends java.lang.Object

This class contains the current state data of the GPS satellites, as viewed from the position of the GPS receiver.

Author:

Andrew Pavlin, KA2DDO

Field Summary

Fields

Modifier and Type	Field and Description
short	fixQuality Fix quality number (character from $GPGSA sentence).
int	gpgsvNumSentences Total number of $GPGSV sentences needed to describe all satellites in use.
float	hdop Horizontal dilution of precision.
float	pdop Three-dimensional position dilution of precision.
SatelliteState[]	sats Collection of state records for each individual satellite.
long	timeOfLastGpGsa Receive time of last $GPGSA in Java milliseconds since 1 Jan 1970 UTC.
long	timeOfLastGpGsv Receive time of last $GPGSV in Java milliseconds since 1 Jan 1970 UTC.
float	vdop Vertical dilution of precision.

Constructor Summary

Constructors

Constructor and Description
SatelliteCatalog() Create a SatelliteCatalog object.

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString() Returns a string representation of the object.

Methods inherited from class java.lang.Object

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

Field Detail

timeOfLastGpGsa

public long timeOfLastGpGsa

Receive time of last $GPGSA in Java milliseconds since 1 Jan 1970 UTC.

timeOfLastGpGsv

public long timeOfLastGpGsv

Receive time of last $GPGSV in Java milliseconds since 1 Jan 1970 UTC.

fixQuality

public short fixQuality

Fix quality number (character from $GPGSA sentence).

sats

public final SatelliteState[] sats

Collection of state records for each individual satellite. First 30 are Global Positioning System (US DoD), others are DGPS receivers or for other constellations with multi-constellation receivers.

pdop

public float pdop

Three-dimensional position dilution of precision.

hdop

public float hdop

Horizontal dilution of precision.

vdop

public float vdop

Vertical dilution of precision.

gpgsvNumSentences

public int gpgsvNumSentences

Total number of $GPGSV sentences needed to describe all satellites in use.

Constructor Detail

SatelliteCatalog

public SatelliteCatalog()

Create a SatelliteCatalog object.

Method Detail

toString

public java.lang.String toString()

Returns a string representation of the object.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the object.