TDOA for Narrow-band Signal with Low Sampling Rate and Imperfect Synchronization

Li, Zan; Dimitrova, Desislava Cvetanova; Hawes Raluy, David-Saeed; Braun, Torsten (20 May 2014). TDOA for Narrow-band Signal with Low Sampling Rate and Imperfect Synchronization. In: 7th IFIP Wireless and Mobile Networking Conference (WMNC 2014) (pp. 1-8). IEEE 10.1109/WMNC.2014.6878849

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Time-based localization techniques such as multilateration are favoured for positioning to wide-band signals. Applying the same techniques with narrow-band signals such as GSM is not so trivial. The process is challenged by the needs of synchronization accuracy and timestamp resolution both in the nanoseconds range. We propose approaches to deal with both challenges. On the one hand, we introduce a method to eliminate the negative effect of synchronization offset on time measurements. On the other hand, we propose timestamps with nanoseconds accuracy by using timing information from the signal processing chain. For a set of experiments, ranging from sub-urban to indoor environments, we show that our proposed approaches are able to improve the localization accuracy of TDOA approaches by several factors. We are even able to demonstrate errors as small as 10 meters for outdoor settings with narrow-band signals.

Item Type: Conference or Workshop Item (Paper)
Division/Institute: 08 Faculty of Science > Institute of Computer Science (INF)
08 Faculty of Science > Institute of Computer Science (INF) > Communication and Distributed Systems (CDS)
UniBE Contributor: Li, Zan; Dimitrova, Desislava Cvetanova; Hawes Raluy, David-Saeed and Braun, Torsten
Subjects: 000 Computer science, knowledge & systems
500 Science > 510 Mathematics
ISBN: 978-1-4799-3060-9/14
Publisher: IEEE
Language: English
Submitter: Jonnahtan Eduardo Saltarin de Arco
Date Deposited: 16 May 2014 09:31
Last Modified: 26 Jun 2016 01:51
Publisher DOI: 10.1109/WMNC.2014.6878849
BORIS DOI: 10.7892/boris.50273
URI: http://boris.unibe.ch/id/eprint/50273

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