Lecture notes for a Master of Science Course in the International Master program GEOENGINE at the University Stuttgart. The lecture mainly deals with Global Navigation Satellite Systems (GNSS). The oldest of them, the GPS system is discussed in detail. For the other systems (modernised GPS , GLONASS, GALILEO) mainly their differences to the GPS system are discussed.
In preparation the reading of “Foundations of Satellite Geodesy” is recommended.