Communication & Synchronization Systems of Complex Infrastructure Facilities. Directions for Future Development

Modern industrial, transport and energy infrastructure facilities are built with extensive use of telecommunications and information technologies. At the same time, it is very important to ensure the synchronization of technological processes at remote sites. Considering the general issues of constructing time-frequency synchronization systems, the authors draw attention to the excessive dependence on global navigation satellite systems (GNSS) as an integral component of communication between the master clock and the UTC laboratory. As an alternative to GNSS, it is proposed to use the technology of coherent synchronization systems based on fiber-optic transmission systems. It is expected that this will significantly reduce transmission errors of the reference frequency and time scale, as well as increase the accuracy of synchronization of system terminal devices