High-precision time synchronization system and method using virtual atomic clocks
US12092997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2023 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Dec 13, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.