GNSS	Global Navigation Satellite System
GPS	Global Positioning System
TCXO	Temperature Compensated Crystal Oscillator
PCO	Phase Center Offset
PCV	Phase Center Variations
SNR	Signal to Noise Ratio
SBAS	Satellite-Based Augmentation System
PPP	Precise Point Positioning
RTCM	Radio Technical Commission for Maritime Service
QZSS	Quasi-Zenith Satellite System
EUREF	European Reference Frame
RINEX	Receiver Independent Exchange format
LGO	Leica Geo Office
BSW	Bernese GPS Software
RMSE	Root Mean Square Error