Email this article ANALYSIS OF TIME AND FREQUENCY ERROR OF SYNCHRONIZATION SIGNALS IN DIGITAL TRANSMISSION SYSTEMS
- Authors: Batenkov K.A.1, Katkov O.N.2, Kozlenko A.V.3
-
Affiliations:
- Moscow technical university of communication and information
- The Academy of Federal Security Guard Service of the Russian Federation
- Issue: No 1 (27) (2025)
- Pages: 52-58
- Section: Electrotechnical Complexes and Systems
- URL: https://bakhtiniada.ru/2658-3488/article/view/362004
- ID: 362004
Cite item
Full Text
Abstract
The aim of this study is to generalize approaches to analyzing the error of phase fluctuations of the synchronization signal in information transmission systems. The objective is to refine the methodological framework for calculating time and frequency error. The research methods include comparative analysis combined with an analysis of domestic standards and international recommendations related to measuring synchronization signal inaccuracy due to the influence of interference and noise in digital communication channels. The work presents the main calculation rela-tionships for the inaccuracy indicators of reference generator signals. Examples illustrate the procedure for their calculation and analysis, as well as the process for determining compliance with standards. The presented parameters of frequency error include Allan deviation, modified Allan deviation, time deviation, root mean square (RMS) of time interval error, maximum time interval error, and the frequency error parameter: relative frequency deviation over a period longer than 7 days for synchronization signals at the outputs of primary reference generators. Findings state that the assessment of compliance with frequency stability standards of the synchronization signal is performed for four types of frequency offset of the input reference signal from the nominal frequency: free-running mode, minimum static tracking range, dynamic tracking range, and capture range of the slave devices.
About the authors
Kirill Aleksandrovich Batenkov
Moscow technical university of communication and informationdoctor of technical sciences
Oleg Nikolaevich Katkov
The Academy of Federal Security Guard Service of the Russian Federation
Email: dim.saharov@yandex.ru
candidate of technical sciences
Andrey Vladimirovich Kozlenko
References
Брени С. Синхронизация цифровых сетей связи / Пер. с англ. Н.Л. Бирюкова, С.Я. Несвитской, Н.Р. Триски; Под ред. А.В. Рыжкова. – М.: Мир, 2003. – 417 с. Rec. G.810. Definitions and terminology for synchronization networks. – 1996–08. – Geneva: ITU-T, 1996. – 27 p. Инструкция по метрологическому обеспечению первичных эталонных генераторов (ПЭГ) системы сетевой тактовой синхронизации (ТСС): Утв. Минсвязи России 26.10.99. – Москва: МК-Полиграф, 2000. – 56 с. Rec. G.811. Timing characteristics of primary reference clocks. – 1997–09. – Geneva: ITU-T, 1997. – 11 p. Батенков К.А., Фокин А.Б. Анализ надежности телекоммуникационных сетей, поддержи-вающих механизмы защитного переключения и восстановле¬ния для одного основного маршрута // Вестник Томского государственного университета. Управле¬ние, вычислительная техника и информатика. – 2023. – № 65. – С. 58–68. Rec. G.813. Timing characteristics of SDH equipment slave clocks (SEC). – 2003–03. – Geneva: ITU-T, 2003. – 36 p. Rec. G.812. Timing requirements of slave clocks suitable for use as node clocks in synchronization networks. – 2004–06. – Geneva: ITU-T, 2004. – 46 p. Rec. G.811.1. Timing characteristics of enhanced primary reference clocks. – 2017–08. – Geneva: ITU-T, 2017. – 14 p. Батенков К.А. Вероятность связности телекоммуникационной сети на основе приведения нескольких событий несвязности к объединению независимых событий // Информационно-управляющие системы. – 2021. – № 6(115). – С. 53-63.
Supplementary files
