Using the GLONASS System for Geodetic Survey

Peter Raby and Peter Daly

Abstract:	GPS has been in use for surveying for several years and a variety of methods have been proposed for resolving the integer ambiguities to determine the baseline, depending upon the application. The GLONASS system is similar to GPS and can also be used for differential carrier phase positioning. This paper describes the calibration techniques used with two GLONASS receivers to determine the differential carrier phase delay between the receivers. The calibration allows accurate differential carrier phase measurements to be made. The stability of the calibration with temperature is shown. The algorithm modifications required to allow correct resolution of a GLONASS baseline are described. Static survey results, using GLONASS carrier phase only, are shown for a 1Om baseline resolved over l-2 hours. These are compared with GPS results obtained with the same receivers on the same baseline. The performance of the two systems, for short baselines, is shown to be similar provided the necessary calibration is carried out for GLONASS and the measurement epochs on the two receivers are synchronous.
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:	1129 - 1138
Cite this article:	Raby, Peter, Daly, Peter, "Using the GLONASS System for Geodetic Survey," 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. 1129-1138.
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