Global navigation satellite system
Describe Global navigation satellite system?
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It is the standard generic term for satellite navigation systems ("sat nav") which give autonomous geo-spatial positioning along with global coverage. GNSS let small electronic receivers to find out their location (latitude, longitude and altitude) to within a few metres by using time signals transmitted along a line-of-sight by radio from satellites. Receivers compute the precise time as well as position, which can be employed as a reference for scientific experiments.
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