FSUE «VNIIFTRI», Mendeleevo, Moscow region, Russia
Al’manac of Modern Metrology № 4 (28) 2021, pages 109–114
Annotation. The article discusses the main trends in the development of communication network technologies and equipment for time-frequency support. The increased requirements for time-frequency synchronization are stated, links are provided to the current recommendations of the International Telecommunication Union. The article describes the prospects for the use of coherent systems of time-frequency support. A conclusion is made about the prospects of using fiber-optic communication lines to provide coherent time-frequency systems with reference signals of frequency and time.
Key words: network synchronization, time-frequency synchronization, coherent synchronization systems, GNSS, PTP, transmission of frequency and time reference signals over fiber-optic lines.
Full texts of articles are available only in Russian in printed issues of the magazine.