Research on a Nanosecond Standard Time Remote Reproduction Method

• Published in: 2021 IEEE 4th Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC) Vol. 4; pp. 107 - 111
• Main Authors: Chen, Ruiqiong, Liu, Ya, Li, Xiaohui
• Format: Conference Proceeding
• Language: English
• Published: IEEE 18.06.2021
• Subjects: Conferences; Information management; Low cost; Nanoscale devices; Nanosecond time synchronization; Observatories; Performance evaluation; Synchronization; Time synchronization; Time-frequency analysis; UTC(NTSC)
• ISSN: 2693-2776
• DOI: 10.1109/IMCEC51613.2021.9482070

In order to evaluate the performance of standard time remote reproduction, this paper implements a low-cost standard time frequency reproduction device, which can provide a time signal with a deviation of less than 10ns (3σ) from the standard time under the conditions of zero baseline and long baseline. This article using the standard time reproduction system that has been built so far, the standard time remote reproduction experiment was carried out at the National Time Service Center (NTSC) of the Chinese Academy of Sciences and the National Astronomical Observatory Tianjin Monitoring Station. The experiments show that under the condition of zero baseline, the synchronization accuracy (std) between the reproduced signal and the standard time is 1.36ns, and the maximum deviation from the standard time for 24 hours is 3.46ns. Under long baseline conditions, the synchronization accuracy (std) between the reproduced signal and the standard time is 1.65ns, and the maximum deviation from the standard time for 24 hours is 4.58ns.