Ultra-wideband-based real-time positioning with cascaded wireless clock synchronization method

Zhang, F., Hong, S., Ding, Y. and Yang, S.-H. ORCID: https://orcid.org/0000-0003-0717-5009 (2024) Ultra-wideband-based real-time positioning with cascaded wireless clock synchronization method. IEEE Internet of Things. ISSN 2327-4662 doi: 10.1109/JIOT.2024.3356117

Abstract/Summary

Positioning services are often required in industrial and public applications. The requirements for positioning systems include sufficient positioning accuracy, appropriate anchor deployment in complex scenarios, stability, and precise5 clock synchronization between anchors. Therefore, algorithms designed for single-room and simple laboratory scenarios are not suitable. To address these challenges, this article proposes a comprehensive solution that combines ultra-wideband (UWB) technology, Time Difference of Arrival (TDoA)-based positioning, and a cascaded wireless clock synchronization (CWCS) algo11rithm. First, we introduce the CWCS algorithm. Second, we discuss the control algorithm for transmitting clock calibration packets (CCP) through wireless broadcast. Finally, we define the Time-of-Arrival selection strategy for TDoA calculation. For multiroom scenarios, we present a positioning boundary optimization method based on received signal strength power and the first path power. This method performs well in real-world experiments.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/115866
Identification Number/DOI	10.1109/JIOT.2024.3356117
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Computer Science
Publisher	IEEE
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