Eurofix and GNSS
The possibility of integrating GLONASS into Eurofix
R. Vroeijenstijn
D. van Willigen – Mentor
E.J. Breeuwer – Mentor
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Abstract
Currently, two independent Global Navigation Satellite Systems (GNSS) are under development: the Global Positioning System (GPS) and Global Orbiting Navigation Satellite System (GLONASS). For harbour approaches a 95% horizontal position accuracy of 8-20m is required. Due to several error sources, this accuracy can not be met by stand alone GNSS. Differential GNSS is a technique to improve the GNSS accuracy. Eurofix is an integrated navigation system consisting of DGPS and Loran-C, in which differential GPS corrections are transmitted to the GPS-users by additionally modulating the Loran signals. Loran-C is a terrestrial positioning system. GLONASS is to be expected to reach full constellation status at the end of 1995. Therefore, the provision of differential GLONASS corrections through the Eurofix datalink is opportune. This report discusses the possibility of integrating GLONASS into Eurofix…