A Report on the First Meeting of the GLONASS-GPS Interoperability Working Group

Walter Senus and Pratap Misra

Abstract:	The progress of the Russian Federation’s GLONASS over the last three years has created growing interest in the user community. Of particular interest is the use of the combined set of signals available from both GPS and GLONASS. The main reason is that, with the two constellations combined, all users would have amply redundant measurements from 10 or more satellites. GLONASS also offers an extra attraction, at least in the short run: Unlike GPS, GLONASS signals available for civil use are not degraded purposemlly. GPS and GLONASS are autonomous systems, each with its own references for time and space. Before measurements from the two systems can be combined, a connection must be established between the two time scales and the coordinate frames. Announcements of new GPS- GLONASS receivers by three manufacturers this year has given a fresh impetus to the resolution of these differences. The differences in coordinate frames and time references are the two best-known examples of GPS- GLONASS interoperability problems. The user community is diverse, and there are other issues of importance, too. The Institute of Navigation (ION) has initiated a working group (WG) to address these issues.
Published in:	Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996) September 17 - 20, 1996 Kansas City, MO
Pages:	1929 - 1930
Cite this article:	Senus, Walter, Misra, Pratap, "A Report on the First Meeting of the GLONASS-GPS Interoperability Working Group," Proceedings of the 9th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1996), Kansas City, MO, September 1996, pp. 1929-1930.
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