Global Navigation Satellite System (GNSS) is a system of satellites that provide autonomous geo-spatial positioning with global coverage. It allows small electronic receivers to determine their location (longitude, latitude, and altitude) to within a few metres using time signals transmitted along a line-of-sight by radio from satellites. Receivers calculate the precise time as well as position, which can be used as a reference for scientific experiments. ReadMore..
Is an proposed three-satellites regionl time treanfer system and satellite Based Augmentation Sytem for the Global Positioning System, specialy for Japan. The main target is to increase the visibilty of GPS signals in higly urban cities in japan and act as an augmentation system. The full installation will feature three satellites with highlty elliptical orbits. The fist quasi-zenith satellite "MICHIBIK" was launched on 11th september 2010. ReadMore..
Networked Transport of RTCM via Internet Protocol” (NTRIP stands for an application-level protocol streaming Global Navigation Satellite System (GNSS) data over the Internet. NTRIP is a generic, stateless protocol based on the Hypertext Transfer Protocol HTTP/1.1. The HTTP objects are enhanced to GNSS data streams. Readmore
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