METHOD AND APPARATUS FOR PROVIDING A COMPACT EXTENDED EPHEMERIS PACKAGE FOR GNSS PROCESSING

A method and apparatus are presented for providing a compact extended ephemeris package for GNSS processing. An extended ephemeris service provides orbit trajectories and clock corrections which are predicted into the future for navigation satellites. The extended ephemeris package format used allow...

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Bibliographische Detailangaben
Hauptverfasser:	VAN DIERENDONCK, Keith James, CHAN, Billy Cheuk Wai, AL-FANEK, Ossama Jamil Saleh
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIRCRAFT ANALOGOUS ARRANGEMENTS USING OTHER WAVES AVIATION COSMONAUTICS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TRANSPORTING VEHICLES OR EQUIPMENT THEREFOR
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Beschreibung
Zusammenfassung:	A method and apparatus are presented for providing a compact extended ephemeris package for GNSS processing. An extended ephemeris service provides orbit trajectories and clock corrections which are predicted into the future for navigation satellites. The extended ephemeris package format used allows the ephemeris information to be sent quickly and efficiently, even when using a low bandwidth communication network. Client GNSS receiver devices obtain the extended ephemeris package and extract the satellite ephemeris information for later use. This allows a client device to operate for many days or weeks without needing to decode or receive new satellite ephemeris information.