Paper
20 June 2023 Analysis and research on the accuracy of optical fiber two-way time synchronization signal based on spread spectrum code ranging
Hongyan Sun, Hang Gong, Jing Peng, Wenchi Zang, Ming Ma
Author Affiliations +
Proceedings Volume 12715, Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023); 127150C (2023) https://doi.org/10.1117/12.2682432
Event: Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023), 2023, Dalian, China
Abstract
To solve the problem of time synchronization between two stations in an optical two-way time synchronization system, an optical time synchronization scheme based on spread spectrum code ranging is presented. Time difference between sites is measured by spread spectrum code ranging, and link delay is eliminated by two-way method to achieve time synchronization between two sites. The accuracy of time synchronization between stations is affected by the accuracy of time difference measurement. By analyzing the structure and measurement principle of receiver code tracking loop, it is found that the accuracy of time difference measurement is mainly related to the signal system, carrier-noise ratio and receiver parameter settings. The carrier-noise ratio of links and receiver parameter conditions are determined. Through the analysis of different signal systems time difference accuracy, the signal system that can meet the requirements of highprecision time synchronization is selected.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hongyan Sun, Hang Gong, Jing Peng, Wenchi Zang, and Ming Ma "Analysis and research on the accuracy of optical fiber two-way time synchronization signal based on spread spectrum code ranging", Proc. SPIE 12715, Eighth International Conference on Electronic Technology and Information Science (ICETIS 2023), 127150C (20 June 2023); https://doi.org/10.1117/12.2682432
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KEYWORDS
Modulation

Receivers

Ranging

Time metrology

Optical fibers

Optical transmission

Clocks

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