A New Approach to Common-View Time Transfer Using All-in-View Multi-Channel GPS and GLONASS Observations

Abstract : The combined use of GPS and GLONASS for international time and frequency transfer is feasible despite differences between the two systems. The use of two systems in multichannel mode increases the number of observations by a factor of 20 in comparison to a one-channel one-system mode. This results in an improvement in frequency comparisons. Specially designed receivers for GPS + GLONASS multichannel time and frequency comparisons are described and some initial results are provided.