GPS Receiver Performance Test at ROA

Hector Esteban, Juan Palacio, Francisco Javier Galindo, and Jorge Garate

Abstract:	Real Instituto y Observatorio de la Armada (ROA) carries out daily intercomparisons of time and frequency using the GPS satellite system. For this type of links and for high-precision global comparisons, the use of geodesic GPS receivers is highly recommended, because it provides the solution using code P1/P2 (P3) and also carrier phase (PPP). ROA has been operating two different class of these receivers: PolaRx2 (developed by Septentrio, Belgium) since 2005 and GTR50 (developed by DICOM, Czech Republic) since 2006.Although the last one was initially developed for time and frequency comparisons using the GPS Common View C/A method, this receiver can perform code and phase measurements and, after the issue of the last software version, it has provided the possibility of solution in carrier phase. In this paper, we present the comparison results of three GTR50 receivers, in two different setups: common clock and zero baseline. Also, comparison with PolaRx2 data are shown and analyzed.
Published in:	Proceedings of the 40th Annual Precise Time and Time Interval Systems and Applications Meeting December 1 - 4, 2008 Hyatt Regency Reston Town Center Reston, Virginia
Pages:	349 - 360
Cite this article:	Esteban, Hector, Palacio, Juan, Galindo, Francisco Javier, Garate, Jorge, "GPS Receiver Performance Test at ROA," Proceedings of the 40th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, December 2008, pp. 349-360.
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