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Table 1 Medium and long-baseline data processing strategy settings

From: GPS + Galileo tightly combined RTK positioning for medium-to-long baselines based on partial ambiguity resolution

Item

Models

Satellites

GPS + Galileo

Observations

Phase and code observations

Signal selection

GPS: L1, Galileo: E1

Cutoff elevation

15°

Sampling rate

30s

Observation weight

Elevation dependent weight

Phase-windup effect

Corrected

Satellite Antenna PCO and PCV

DD elimination or weakening

Receiver antenna PCO and PCV

DD elimination or weakening

Earth tides

Corrected

Relativity correction

Corrected

Satellite orbit

Broadcast/Precise ephemerides

Satellite clock

DD elimination or weakening

Receiver clock

DD elimination or weakening

Station coordinate

estimated as parameters

Tropospheric delay

estimated as parameters

Ionospheric delay

estimated as parameters

Phase ambiguities

LAMBDA/MLAMBDA

AR success rate threshold PS0

0.999

Ratio threshold R thres

3

Minimum threshold n0

6