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A Method for Improving UWB Indoor Positioning
Joint Authors
Dang, Xiaochao
Hao, Zhanjun
Beibei, Li
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-12
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
The existing positioning methods that use received signal strength indication (RSSI) and channel state information (CSI) may suffer from multipath and shadowing in a complex wireless environment, which can result in more positioning errors.
This paper proposes a method for accurate multilabel positioning in the non-line-of-sight (NLOS) environment.
First, the position is roughly estimated using the orthogonal variable spreading factor (OVSF-TH) algorithm, which can automatically match the signal interference.
The ultra-wideband (UWB) spectral density and pulse amplitude in the time domain are used to determine the direction of the label and enhance estimation of the mobile label direction.
Then, the location of the tag is obtained by triangulation, and a coordinate-based coordinate estimation method is proposed to calculate the relative displacement of multiple tags to determine the label position.
Finally, by setting up a real experimental environment, the influence of the number of base stations on the accuracy and the performance of the localization method under different circumstances are analyzed.
The theoretical analysis and experimental results show that the method is simple to deploy, inexpensive, and very accurate in terms of positioning, having a clearly effective indoor positioning accuracy.
Compared with other existing positioning methods, this method can achieve more accurate positioning.
Moreover, it has important theoretical and practical applicability because of the reliability and accuracy of indoor positioning in an NLOS environment.
American Psychological Association (APA)
Hao, Zhanjun& Beibei, Li& Dang, Xiaochao. 2018. A Method for Improving UWB Indoor Positioning. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1209462
Modern Language Association (MLA)
Hao, Zhanjun…[et al.]. A Method for Improving UWB Indoor Positioning. Mathematical Problems in Engineering No. 2018 (2018), pp.1-17.
https://search.emarefa.net/detail/BIM-1209462
American Medical Association (AMA)
Hao, Zhanjun& Beibei, Li& Dang, Xiaochao. A Method for Improving UWB Indoor Positioning. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1209462
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209462