Table 8 GNSS positioning techniques
Technique | Accuracy | Measurement | Methods for accuracy improvement |
|---|---|---|---|
SPP | Meter-level | Pseudo-range | None |
DGNSS | Decimeter-level to meter-level | Pseudo-range | Differential measurements |
RTK | Centimeter-level | Carrier-phase | Differential measurements, ambiguity resolution |
PPP | Decimeter-level to centimeter-level | Carrier-phase | Precise satellite orbit and clock corrections, float ambiguity |
PPP-AR | Similar to RTK | Carrier-phase | Precise satellite orbit and clock corrections, ambiguity resolution |