Design and Implementation of Synchronization-free TDOA Localization System Based on UWB

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dc.contributor.authorWang, Wei
dc.contributor.authorHuang, Junjie
dc.contributor.authorCai, Shaobin
dc.contributor.authorYang, Junjie
dc.coverage.issue1cs
dc.coverage.volume28cs
dc.date.accessioned2020-04-23T06:56:47Z
dc.date.available2020-04-23T06:56:47Z
dc.date.issued2019-04cs
dc.description.abstractAt present, indoor localization system based on ultra wideband(UWB) has attracted more and more attention. In UWB system, Time Difference of Arrival (TDOA) and Two-Way Ranging (TWR) are widely used. However, TDOA requires high-accuracy time synchronization between all anchor nodes and even slight noise can cause large localization error. In TWR localization scheme, although two-way communication between anchor nodes and blind nodes can avoid the time synchronization issue effectively, the clock drift and the number of blind nodes will affect the system performance. To overcome these problems, a new synchronizationfree TDOA location algorithm is proposed. Firstly,the clock model is established and the influence of antenna delay is considered. Then, the system signal exchange mechanism and localization model are proposed. In the system, the blind nodes just receive the ranging signals from anchor nodes so that the system has no limit on the number of blind nodes. Finally,the major factor affecting the accuracy of ranging - clock drift, is discussed, and then a clock frequency offset compensation algorithm is proposed. The indoor localization experiment results show that the indoor localization system designed in this paper can achieve 3-D localization.en
dc.formattextcs
dc.format.extent320-330cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2019 vol. 28, č. 1, s. 320-330. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2019.0320en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/186861
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2019/19_01_0320_0330.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectIndoor localizationen
dc.subjectTwo-Way Ranging (TWR)en
dc.subjectTime Difference of Arrival (TDOA)en
dc.subjecttime synchronizationen
dc.titleDesign and Implementation of Synchronization-free TDOA Localization System Based on UWBen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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