Around-the-world GPS common-view closures with conventional P3 and smoothed P3 codes

The GPS common-view method has recently been utilised with P3 code rather than C/A code in TAI computation. Cases using both conventional and smoothed P3 code are investigated to understand the characteristics of GPS common-view time transfer closures with IGS precise ephemeris. Analytical results reveal that smoothed P3 code yields a lower uncertainty than conventional P3 code.