GPS and GPS+GLONASS RTK

Frank van Diggelen

Abstract:	This paper presents not only two new RTK products, but also a major breakthrough in global positioning technology, taking RTK where it has never gone before. The first new product is the Z-Sensor, a single board implementation of Ashtech’s reknowned Z12 receiver. The second product is the GG-RTK receiver, the world’s first GPS+GLONASS RTK product. RTK has represented the peak of GPS performance for several years, but there have been severe limitations - with fewer than 5 satellites in view RTK does not work at all, or works so slowly as to be almost no better than DGPS in many applications. Now, by combining GPS and GLONASS in an RTK product, you can do RTK, for the first time ever, in places such as open pit mines, urban canyon, river valleys, etc., where GPS-only RTK simply will not work.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	139 - 144
Cite this article:	van Diggelen, Frank, "GPS and GPS+GLONASS RTK," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 139-144.
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