Application of new time receivers in GLONASS

Abstract

One of the ways to improve GLONASS performance is to increase the accuracy of GLONASS Time generation and its synchronization to Russian national time scale UTC(SU). This approach is planned to be realized by, first of all, increasing the accuracy of time scale comparisons between the Main and Reserved Central Synchronizers (CS) which are the basis for GLONASS Time generation and State Time and Frequency Reference (STFR) which is the basis for UTC(SU) generation as well as by increasing the accuracy of mutual comparisons between the Main and Reserved CSs. The paper presents the preliminary results of estimating the accuracy of CS-STFR time scale comparisons with using a new dual-frequency Time Transfer Unit TTU-1 developed at Russian Institute of Radionavigation and Time (RIRT) installed at both CSs and STFR and a new time receiver GTR-51 installed at STRF.