Results of Real-Time Testing of GPS Carrier Phase Ambiguity Resolution On-The-Fly

Sally L. Frodge, Shannon, Benjamin W. Remondi, D. Lapucha and Richard Barker

Abstract: The U. S. Army Corps of Engineers has been developing a GPS carrier phase based positioning system for hydrographic surveying and dredging since 1988. This system provides real-time three dimensional positions with horizontal and vertical accuracies better than one decimeter over ranges up to 20 kilometers from a single reference station without static initialization. The project has passed from concept development through feasibility studies, system analysis, resolution of carrier ambiguities on- the-fly (OTF), to final system integration which is nearing completion. The real-time testing of the system began in March of 1993. This testing was performed under varying operating conditions to evaluate the limits of OTF ambiguity resolution for precisely positioning moving platforms. This paper will summarize the results of those tests. Early real- time tests performed have shown l-3 centimeters in all three dimensions. The final design of the real- time system and its integration to hydrographic survey platforms will also be discussed.
Published in: Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993)
September 22 - 24, 1993
Salt Palace Convention Center
Salt Lake City, UT
Pages: 711 - 719
Cite this article: Frodge, Sally L., Shannon,, Remondi, Benjamin W., Lapucha, D., Barker, Richard, "Results of Real-Time Testing of GPS Carrier Phase Ambiguity Resolution On-The-Fly," Proceedings of the 6th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1993), Salt Lake City, UT, September 1993, pp. 711-719.
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