High-precision time synchronization system and method using virtual atomic clocks

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United States of America Patent

PATENT NO 12092997
APP PUB NO 20240231284A1
SERIAL NO

18537937

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Abstract

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A high-precision time synchronization (HTS) system and method using virtual atomic clocks (VACs) includes: providing an implementation of VAC generation method: accessing the high-precision time service provided by the WPT system, solving receiver clock offsets and reconstructing reference stations observations; providing a rapid HTS method: using the VAC information to realize rapid HTS by means of pseudorange or carrier phase CV time transfer; obtaining a HTS system using VACs, including a real-time observations receiving and distributing module, a differential corrections receiving and decoding module, a local clock solving module, a GNSS observations reconstruction module, and a VAC data broadcasting module. Aiming at VACs don't have the function of time-keeping, and GNSS is easy to be interrupted by factors such as environmental and network anomalies, and a VAC is unable to continuously provide high-precision time service, combing VACs is proposed to safeguard the continuity and reliability of the time-frequency service system.

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Patent Owner(s)

Patent OwnerAddress
BEIHANG UNIVERSITY100191 NO 37 HAIDIAN DISTRICT BEIJING XUEYUAN ROAD BEIJING CITY BEIJING CITY 100191

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shi, Chuang Beijing, CN 3 11
Zheng, Fu Beijing, CN 2 1

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