1. School of Optical and Electronic Technology, China Jiliang University, Zhejiang, Hangzhou 310018, China
2. Division of Time and Frequency Metrology, National Institute of Metrology, Beijing 100029, China
3. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044,China
4. National Time and Frequency Metrology Center, Beijing 100029, China
Abstract：As a backup communications on the ground, and also in order to provide a more reliable frequency transmission path, a NIMDO scheme based on Beidou short message communication is proposed, and a set of remote time traceability device using more reliable communication is designed. Beidou short message communication is used to transmit the time-frequency data of the reference end, and the client analyzes the time-frequency data and tames the client NIMDO. The experimental results show that under the condition of short baseline, the NIMDO scheme based on BeiDou short message communication can achieve the precise traceability of remote time, and the traceability deviation between the client and the reference terminal is better than ±4ns, and the traceability deviation is 3.6ns.
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2022, Vol. 43 
