Comparison of availability of Galileo, GPS and a combined Galileo/GPS navigation systems

• Autorzy: Wang J. , Keller W. , Sharifi M. A.

Identyfikatory

DOI

10.2478/v10018-007-0001-9

• Języki publikacji: EN

Abstrakty

EN

Galileo satellites have been planned to be launched in 2006 by the European Union. Launching these satellites will double the number of positioning satellites currently accessible to users. As a consequence, accuracy and reliability will be improved dramatically. Besides accuracy and reliability, availability is also used for quantification of a Global Navigation Satellite System performance. This paper briefly describes the constellation of space segment of the proposed Galileo navigation system in comparison with the well-known Global Positioning System (GPS). Availability of GPS, Galileo and Galileo/GPS satellites are then formulated in terms of Satellite Appearance Distribution Function (SADF). Achievable accuracy in horizonal and vertical positions and timing are expressed using the respective Dilution of Precisions based on the derived mathematical formulation.

Słowa kluczowe

EN

Galileo; GPS; navigation system

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2006
• Tom: Vol. 41, No. 1
• Strony: 3--15
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Wang J.

• Department of Surveying Engineering, Tongji University, P.R. of China

autor

Keller W.

• Department of Geodesy and GeoInformatics, University of Stuttgart Geschwister-Scholl-Str. 24/D, D-70174 Stuttgart, Germany

autor

Sharifi M. A.

• Department of Geodesy and GeoInformatics, University of Stuttgart Geschwister-Scholl-Str. 24/D, D-70174 Stuttgart, Germany

Bibliografia

• Geiger A. (1988). Simulating disturbances in GPS by continuous satellite distribution, Journal of Surveying Engineering, 114, 182-194.
• Keller W. (2001). Geodetic coordinate systems, Lecture notes, Department of geodesy and geoInformatics, University of Stuttgart.
• Krakiwsky E. J., D. B. Thomson (1974) Geodetic position computations, Lecture notes, No. 39, Department of geodesy and geomatics engineering, University of New Brunswick, Fredericton.
• McCarthy D. (1996). IERS conventions (1996), IERS technical notes No. 21, International Earth Rotation Service.
• Meng X., C. Noakes, A. H. Dodson and G. W. Roberts (2003). GPS satellite geometry and its implications for structural deformation monitoring, ION 2003 proceedings, 9-12.
• O’Keefe K., S. G. Ryan and G. Lachapelle (2002). Global availability and reliability assessment of the GPS and Galileo global navigation satellite systems, Canadian Aeronautics and Space J., 48, 123-132.
• Santerre R. (1991). Impact of GPS satellite sky distribution, manuscripta geodetica, 16, 28-53.
• Seeber G. (2003). Satellite Geodesy: Foundations, Methods & Applications, Walter de Gruyter, Berlin.
• U.S. Department of Transportation and U. S. Department of Defense (2001). Federal Radionavigation Systems, Final Report, DOT/VNTSC/RSPA/01-3.1/DoD-4650.5.
• Wang J., H. I. Bki and L. Caiping (2002). Dependency of GPS positioning precision on station location, GPS Solutions, 6, 91-95.
• Wells D. (1994). Functional analysis applied to least squares in geomatics, Lecture notes, Department of geodesy and geomatics engineering, University of New Brunswick, Fredericton.
• Wolfrum J., and H. Trautenberg (2000). Galileo - a technical concept for the European satellite navigation system, Int. J. Satell. Commun., 18, 243-258.
• Yarlagadda R., I. Ali, N. Al-Dhahir and J. Hershey (2000). GPS GDOP metric, IEE Proceedings on Radar, Sonar, and Navigation, 259-264.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).