Tag Archive for Tag: How GPS works

Tag: How GPS works Satellite surveying

7.1 Introduction At the time of going to press, satellite surveying relies mainly on a system called global positioning system (GPS), which was originally set up as a military navigation aid by the USA in the mid-1980s, but which has now become a significant tool for civilian use in general and surveyors in particular. Using so-called differential GPS (DGPS), in

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