Open Access

Table 1

Data processes and analysis of GPS CV and VLBI.

Technology Software Strategy Estimate
VLBI Calc/Solve Single baseline Kunming-Urumqi
Reference station (Shanghai)
X/S ionosphere-free linear combination
Station coordinates
Atmospheric delay (1 h)
Clock offset (1 h)
Piecewise linear fitting
GNSS CV GCVPTS GPS CV (pseudo range) Atmospheric delay
Clock (Kunming)–Clock (Urumqi) (16 min)
Vondrak filter

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