Abstract
GPS is widely used for time and frequency transfers between ground stations. It is well-known that the GPS carrier phase is a much more precise observable than the code and is therefore of great interest. However the carrier phase is ambiguous, only the code can provide the absolute time difference between the two stations. Here we propose a rapid method to easily resolve integer ambiguities for accurate time transfer. Using this method, several time transfer results are analyzed for different baselines (from an ultra-short one in common clock configuration to a transatlantic one) and for durations of several days. Moreover our results will be compared to TWSTFT (Two-Way Satellite Time and Frequency Transfer). Finally this method is deemed to be a reliable way to estimate integer ambiguities.
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