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Phoenix-XNS - A Miniature Real-Time Navigation System for LEO Satellites

Montenbruck, Oliver and Gill, Eberhard (2006) Phoenix-XNS - A Miniature Real-Time Navigation System for LEO Satellites. 3rd ESA Workshop on Satellite Navigation User Equipment Technologies, NAVITEC’2006, 2006-12-11 - 2006-12-13, Noordwijk. (In Press)

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Abstract

The paper describes the development of a miniature GPS receiver with integrated real-time navigation system for orbit determination of satellites in low Earth orbit (LEO). The Phoenix-XNS receiver is based on a commercial-off-the-shelf (COTS) single-frequency GPS receiver board that has been qualified for use in a moderate space environment. Its firmware is specifically designed for space applications and accounts for the high signal dynamics in the acquisition and tracking process. The supplementary eXtended Navigation System (XNS) employs an elaborate force model and a 24-state Kalman filter to provide a smooth and continuous reduced-dynamics navigation solution even in case of restricted GPS availability. Through the use of the GRAPHIC code-carrier combination, ionospheric path delays can be fully eliminated in the filter, which overcomes the main limitation of conventional single-frequency receivers. Tests conducted in a signal simulator test bed have demonstrated a filtered navigation solution accuracy of better than 1 m (3D rms).

Document Type:Conference or Workshop Item (Paper)
Title:Phoenix-XNS - A Miniature Real-Time Navigation System for LEO Satellites
Authors:
AuthorsInstitution or Email of Authors
Montenbruck, OliverUNSPECIFIED
Gill, EberhardUNSPECIFIED
Date:1 December 2006
Status:In Press
Keywords:GPS, Navigation, LEO Satellites, Kalman Filter, GRAPHIC measurements
Event Title:3rd ESA Workshop on Satellite Navigation User Equipment Technologies, NAVITEC’2006
Event Location:Noordwijk
Event Type:international Conference
Event Dates:2006-12-11 - 2006-12-13
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Dr.rer.nat.hab. Oliver Montenbruck
Deposited On:22 Jan 2007
Last Modified:12 Dec 2013 20:23

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