Differential technique 1 GALILEO 1 GNSS 1 GPS 1 Galileo 1 Global positioning system 1 High-Accuracy Service (HAS) 1 High-accuracy 1 High-accuracy service 1 Low-costs 1 Positioning techniques Precise point positioning 1 Precise positioning 1 Single-Point Positioning 1 Single-point positioning 1 article 1