Evaluation of Quad-constellation GNSS Precise Point Positioning in Egypt

• Autorzy: El Manaily Emad , Rabbou Mahmoud Abd , El-Shazly Adel , Baraka Moustafa

Identyfikatory

DOI

10.1515/arsa-2017-0002

• Języki publikacji: EN

Abstrakty

EN

Commonly, relative GPS positioning technique is used in Egypt for precise positioning applications. However, the requirement of a reference station is usually problematic for some applications as it limits the operational range of the system and increases the system cost and complexity On the other hand; the single point positioning is traditionally used for low accuracy applications such as land vehicle navigation with positioning accuracy up to 10 meters in some scenarios which caused navigation problems especially in downtown areas. Recently, high positioning accuracy can be obtained through Precise Point Positioning (PPP) technique in which only once GNSS receiver is used. However, the major drawback of PPP is the long convergence time to reach to the surveying grade accuracy compared to the existing relative techniques. Moreover, the PPP accuracy is significantly degraded due to shortage in satellite availability in urban areas. To overcome these limitations, the quad constellation GNSS systems namely; GPS.GLONASS, Galileo and BeiDou can be combined to increase the satellite availability and enhance the satellite geometry which in turn reduces the convergence time. In Egypt, at the moment, the signals of both Galileo and BeiDou could be logged with limited number of satellites up to four and six satellites for both Systems respectively. In this paper, we investigated the performance of the Quad-GNSS positioning in both dual- and single-frequency ionosphere free PPP modes for both high accurate and low cost navigation application, respectively. The performance of the developed PPP models will be investigated through GNSS data sets collected at three Egyptian cities namely, Cairo, Alexandria and Aswan.

Słowa kluczowe

EN

GNSS; GPS; GLONASS; Galileo; PPP

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2017
• Tom: Vol. 52, No. 1
• Strony: 9--18
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

El Manaily Emad

• Cairo University

autor

Rabbou Mahmoud Abd

• Faculty of Engineering - Cairo University

autor

El-Shazly Adel

• Faculty of Engineering - Cairo University

autor

Baraka Moustafa

• German University in Cairo (GUC)

Bibliografia

• Abd Rabbou, M. and El-Rabbany, A. (2015), “Precise Point Positioning Using MultiConstellation GNSS Observations for Kinematic Applications”. Journal of Applied Geodesy, 9, 15-26. http://dx.doi.org/10.1515/jag-2014-0021.
• Abd Rabbou M, El-Rabbany A (2016), “Performance analysis of precise point positioning using multi-constellation GNSS: GPS, GLONASS, Galileo and BeiDou”. Surveying review, May 2016.
• Bos, M.S. and Scherneck, H.-G. (2011), “Ocean Tide Loading Provider”. http://holt.oso.chalmers.se/loading/
• Bisnath, S. B. and Gao, Y. (2009), “Innovation: Precise Point Positioning - A Powerful Technique with a promising future”. GPS World, April 2009.
• Gutman, S., Fuller-Rowell, T. and Robinson, D. (2003), “Using NOAA Atmospheric Models to Improve Ionospheric and Tropospheric Corrections”. Proceedings of the US Coast Guard DGPS Symposium, Portsmouth, 17-19 June 2003.
• Jekeli, C. (2001), “Inertial Navigation Systems with Geodetic Applications”. Walter de Gruyter, Berlin. http://dx.doi.org/10.1515/9783110800234
• Kouba, J. (2009), “A Guide to Using International GNSS Service (IGS) Products”. http://igscb.jpl.nasa.gov/igscb/resource/pubs/UsingIGSProductsVer21.pdf
• Leandro, R.F., Langley, R.B. and Santos, M.C. (2008), “UNB3m_pack: A Neutral Atmosphere Delay Package for Radiometric Space Techniques”. GPS Solutions, 12, 65- 70. http://dx.doi.org/10.1007/s10291-007-0077-5
• Li, X., Zhang, X., Ren, X., Fritsche, M., Wickert, J. and Schuh, H. (2015), “Precise positioning with current multi-constellation Global Navigation Satellite Systems: GPS, GLONASS, Galileo and BeiDou”. Scientific reports, 5.
• Steigenberger P, Hugentobler U, Loyer S, Perosanz F, Prange L, Dach R, Uhlemann M, Gendt G, Montenbruck O (2015), “Galileo orbit and clock quality of the IGS Multi-GNSS Experiment”. Advances Space Research, volume 55, issue 1:269-281.
• Zumberge, J.F., Heflin, M.B., Jefferson, D.C., Watkins, M.M. and Webb, F.H. (1997), “Precise point positioning for the efficient and robust analysis of GPS data from large networks”. Journal of Geophysical Research, Vol. 102, 5005-5017.

Uwagi

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