Abstract
A clock synchronization scheme is crucial for obtaining accuracy in time-based positioning systems. Existing clock synchronization schemes are mostly based on a simplified linear clock model, which unfortunately have a poor long-term synchronization accuracy. Assuming a two-way time transfer protocol, we propose a novel clock synchronization algorithm based on a precise physical clock model to realize joint clock synchronization and propagation delay estimation. The Cramer-Rao lower bound (CRLB) is derived for this clock model and shows that the estimation is asymptotically efficient and converges to the lower bound. For long time spans, this model performs better than a linear clock model.
| Original language | English |
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| Title of host publication | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) |
| Subtitle of host publication | Proceedings |
| Editors | Min Dong, Thomas Fang Zheng |
| Place of Publication | Danvers, MA |
| Publisher | IEEE |
| Pages | 3891-3895 |
| Number of pages | 5 |
| ISBN (Electronic) | 978-1-4799-9988-0 |
| DOIs | |
| Publication status | Published - 19 May 2016 |
| Event | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Shanghai International Convention Center, Shanghai, China Duration: 20 Mar 2016 → 25 Mar 2016 |
Conference
| Conference | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 |
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| Abbreviated title | ICASSP |
| Country/Territory | China |
| City | Shanghai |
| Period | 20/03/16 → 25/03/16 |
Keywords
- clock synchronization
- Clock drift
- ultra-wide band
- two way time transfer