Experiences of RTK positioning in hard observational conditions during Nysa Kłodzka river project

• Autorzy: Bakuła M. , Oszczak S.
• Konferencja: Geodetic and Geodynamic Programmes of the CEI (Central European Initiative) / Proceedings of the EGU G6 Symposium (02-07. 04. 2006 ; Vienna, Austria)
• Języki publikacji: EN

Abstrakty

EN

The paper presents the application of RTK technology for measuring the horizontal and vertical cross-sections of the Nysa Kłodzka River located in the southern part of Poland. GPS measurements were performed by the staff of Chair of Satellite Geodesy and Navigation of University of Warmia and Mazury in Olsztyn in cooperation with the team of the OPeGieKa Wroclaw company. The measurements had been done for 30 days during August and September 2004. Three GPS receivers were used such as two Ashtech Z-Xtreme and one Ashtech Z-Surveyor. The radiomodems Satelline of SATEL company were used for transmitting RTK corrections from a reference station to rovers. RTK measurements were being performed in very difticult observational conditions Iike in heavy shrubbery or under trees. It was excellent occasion to test reliability and accuracy of RTK positioning in practice. In general, the use of RTK technology in woodlands and rural terrain extremely improved efficiency of works, but gross errors were being occurred from time to time in very severe conditions of GPS observations due to the lack of good satellite geometry and availability.

Słowa kluczowe

EN

RTK; satellite positioning; satellite geodesy; GPS

PL

RTK; pozycjonowanie satelitarne; geodezja satelitarna; GPS; system pozycjonowania obiektów

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2006
• Tom: z. 1/76
• Strony: 71--79
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Bakuła M.

autor

Oszczak S.

• University of Warmia and Mazury Chair of Satellite Geodesy and Navigation, 5 Heweliusza St., 10-724 Olsztyn, Poland

Bibliografia

• 1. Abousalem M., Han S., Qin X., Martin W., Lemoine R. (2001): Ashtech Instant-RTK: A Revolutionary Solution for Surveying Professionals, Presented at The 3th International Symposium on Mobile Mapping Technology, Cairo, Egipt, January 3-5, http://products.thalesnavigation.com/assets/techpapers/19_AshtechInstant-RTK.pdf
• 2. Ashtech (1998): GPS Fieldmate, Operation and Reference Manual, USA.
• 3. Ashtech (1998): Ashtech Z-Surveyor & Z-FX, Operation and Reference Manual, Magellan Corporation, USA.
• 4. Ashtech (1998): Ashtech Z-family, Technical Reference Manual, Magellan Corporation, USA.
• 5. Bakuła M., Kapcia J., Oszczak S. (1998): Tyczenie tras ropociągów metodą RTK na polach naftowych pustyni Asab w Zjednoczonych Emiratach Arabskich, Konferencja techniczna "Wiosna w geodezji", Poznań.
• 6. Dąbrowski T., Rogowski J. B. (2002): Application of RTK System to Investigate Ship's Maneuverability, REPORTS ON GEODESY No. 3 (63), pp 45-52.
• 7. Grzegorzewski M., Oszczak S., Ciećko A., Bakuła M., Walawski M., Popielarczyk D. (2001): Accuracy of Aircraft Trajectory determination During En-route, Approaching and Landing Phase with GPS Technique, Proceedings of The V GNSS International Symposium (GNSS'2001) Satellite Navigation Objectives and Strategies, 8-11 May, Seville - Spain.
• 8. Hasegawa H., Yoshimura T. (2003): Application of dual-frequecy GPS receiver for static surveying undet tree canopy. Journal of Forest Research, Springer-Verlag, Tokyo Inc, t. 8, pp. 103-110.
• 9. Kryński J., Cisiak J., Mańk M. (2001): RTK w terenie zurbanizowanym. Przykład Warszawy, Konferencja nt.: Satelitarne metody wyznaczania pozycji we współczesnej geodezji i nawigacji, Dęblin 22-23.05.2001, Zeszyty Naukowe WSOSP w Dęblinie, Dodatek: do nr 2/2001, s 63-78.
• 10. Naesset E., (2001): Effects of differential single- and dual-frequency GPS and GLONASS observatons on point accuracy under forest canopies. Photogrammetryic Enginieering And Remote Sensing, t. 67, pp. 1021-1026.
• 11. Oszczak S., Bakuła M. (2002): Pomiar osnów leśnych za pomocą techniki GPS. Systemy Informacji Przestrzennej XII Konferencja Naukowo-Techniczna, Warszawa.
• 12. Sigrist P., Coopin P., Hermy M. (1999): Impact of forest canopy on quality and accuracy of GPS. International Journal of Remote Sensing, Taylor and Francis Ltd, t. 20(18), pp. 3595-3610.