Detection of UWB ranging measurement quality for collaborative indoor positioning

Jing, Hao and Bonenberg, Lukasz Kosma and Pinchin, James and Hill, Chris and Moore, Terry (2016) Detection of UWB ranging measurement quality for collaborative indoor positioning. Journal of Location Based Services, 9 (4). pp. 296-319. ISSN 1748-9725

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Wireless communication signals have become popular alternatives for indoor positioning and navigation due to lack of navigation satellite signals in such environments. The signal characteristics determine the method used for positioning as well as the positioning accuracy. Ultra-wideband (UWB) signals, with a typical bandwidth of over 1 GHz, overcome multipath problems in complicated environments. Hence, potentially achieves centimetre-level ranging accuracy in open areas. However, signals can be disrupted when placed in environments with obstructions and cause large ranging errors. This paper proposes a ranging measurement quality indicator (RQI) which detects the UWB measurement quality based on the received signal strength pattern. With a detection validity of more than 83%, the RQI is then implemented in a ranging-based collaborative positioning system. The relative constraint of the collaborative network is adjusted adaptively according to the detected RQI. The proposed detection and positioning algorithm improves positioning accuracy by 80% compared to non-adaptive collaborative positioning.

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Location Based Services on 13/01/2016, available online:
Keywords: Collaborative positioning; adaptive; ranging constraint; quality detection; UWB ranging
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering
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Depositing User: Eprints, Support
Date Deposited: 05 May 2016 15:38
Last Modified: 17 Sep 2016 00:33

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