Academic Journal
Indoor positioning based on tightly coupling of PDR and one single Wi-Fi FTM AP
| العنوان: | Indoor positioning based on tightly coupling of PDR and one single Wi-Fi FTM AP |
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| المؤلفون: | Yuan Wu, Ruizhi Chen, Wenju Fu, Wei Li, Haitao Zhou, Guangyi Guo |
| المصدر: | Geo-spatial Information Science, Vol 26, Iss 3, Pp 480-495 (2023) |
| بيانات النشر: | Taylor & Francis Group, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Mathematical geography. Cartography LCC:Geodesy |
| مصطلحات موضوعية: | Indoor positioning, Wi-Fi Fine Time Measurement (FTM)/Round Trip Time (RTT), Tightly Coupled (TC) integration, Pedestrian Dead Reckoning (PDR), Extended Kalman Filter (EKF), Mathematical geography. Cartography, GA1-1776, Geodesy, QB275-343 |
| الوصف: | ABSTRACTThe indoor positioning system is now an important technique as part of the Internet-of-Things (IoT) ecosystem. Among indoor positioning techniques, multiple Wi-Fi Access Points (APs)-based positioning systems have been researched a lot. There is a lack of research focusing on the scene where only one Wi-Fi AP is available. This work proposes a hybrid indoor positioning system that takes advantage of the Fine-Timing Measurements (FTM) technique that is part of the IEEE 802.11mc standard, introduced back in 2016. The system uses one single Wi-Fi FTM AP and takes advantage of the built-in inertial sensors of the smartphone to estimate the device’s position. We explore both Loosely Coupled (LC) and Tightly Coupled (TC) integration schemes for the sensors’ data fusion. Experimental results show that the proposed methods can achieve an average positioning accuracy of about 1 m without knowing the initial position. Compared with the LC integration method, the median error accuracy of the proposed TC fusion algorithm has improved by more than 52% and 67%, respectively, in the two experiments we set up. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 10095020 1993-5153 1009-5020 |
| Relation: | https://doaj.org/toc/1009-5020; https://doaj.org/toc/1993-5153 |
| DOI: | 10.1080/10095020.2022.2072776 |
| URL الوصول: | https://doaj.org/article/3cf8eaf2d5a143b786b172babdb0c5fb |
| رقم الانضمام: | edsdoj.3cf8eaf2d5a143b786b172babdb0c5fb |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 10095020 19935153 |
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| DOI: | 10.1080/10095020.2022.2072776 |