Design of Ultra‐Wideband Localization System Based on Optimized Time Difference of Arrival Algorithm

In order to solve the problem of low accuracy in indoor positioning, a system based on ultra‐wideband and optimized time difference of arrival (TDOA) is designed. The optimized algorithm of TDOA is adopted to solve the problem of synchronization between anchors and improve the positioning accuracy....

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Bibliographic Details
Published in:IEEJ transactions on electrical and electronic engineering 2020-08, Vol.15 (8), p.1176-1182
Main Authors: Zheng‐dong, Li, Xing‐jie, Chen, Xiu‐ling, Li, Juan, Cai, Yan, He, Hai‐mei, Xu
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Anchors
Bluetooth
Broadband
Corridors
Data transmission
Indoor environments
location
long range
Synchronism
system
time difference of arrival
Ultrawideband
ultra‐wideband
Warehouses
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Summary:In order to solve the problem of low accuracy in indoor positioning, a system based on ultra‐wideband and optimized time difference of arrival (TDOA) is designed. The optimized algorithm of TDOA is adopted to solve the problem of synchronization between anchors and improve the positioning accuracy. The use of LoRa technology for wireless data transmission between anchors improves the flexibility of anchor layout. According to the test, the system can work stably in corridors, rooms, warehouses and other scenarios, and the positioning error is controlled at about 13 cm. The positioning accuracy is 10 times that of the positioning system using WiFi and Bluetooth technology, which can meet the requirements of accurate mobile positioning in complex indoor environment. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
ISSN:1931-4973
1931-4981
DOI:10.1002/tee.23178