From: Multi-constellation GNSS precise point positioning with multi-frequency raw observations and dual-frequency observations of ionospheric-free linear combination
Observation types
E (cm)
N (cm)
U (cm)
Dual-frequency IF observations
2.09
1.50
2.94
Dual-frequency raw observations
2.01
1.35
2.82
Multi-frequency raw observations
1.25
1.06
2.37