High-Precision Time-Frequency Synchronization for Mobile Distributed Coherent Systems

Distributed coherent systems can achieve high signal-to-noise ratio gain through close collaboration among multiple nodes. High-precision time-frequency synchronization between nodes is one of the main challenges to realize distributed coherence on small-scale mobile platforms, such as vehicles and...

Full description

Saved in:
Bibliographic Details
Main Authors: Guo, Xiye, Liu, Suyang, Meng, Zhijun, Liu, Kai, Yan, Enqi
Format: Conference Proceeding
Language:English
Subjects:
distributed coherent systems
Land vehicles
mobile sensor network
Phase frequency detectors
Sensor systems
Sensors
Synchronization
Terrestrial atmosphere
Time-frequency analysis
time-frequency synchronization
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Distributed coherent systems can achieve high signal-to-noise ratio gain through close collaboration among multiple nodes. High-precision time-frequency synchronization between nodes is one of the main challenges to realize distributed coherence on small-scale mobile platforms, such as vehicles and drones. This paper proposes a time-frequency synchronization method based on a pulse time division system, which can achieve phase-level precision on mobile platforms. The effectiveness of the proposed method was verified through a ground vehicle experiment. The root mean square of synchronization errors was 34.49ps, while the short-term frequency stability reached 2.86\times 10^{=12} @1s.
ISSN:2168-9229
DOI:10.1109/SENSORS56945.2023.10324936