A Localization and Tracking System Using Single WiFi Link
Like its outdoor counterpart (e.g., GPS), an indoor tracking system can bring about disruptive changes in how we live and work. This paper proposes a location and tracking system using a single WiFi link based on channel state information. The system can realize real-time, decimeter-level localizati...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/15/9/2461 |
| _version_ | 1797601765569331200 |
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| author | Li-Ping Tian Liang-Qin Chen Zhi-Meng Xu Zhizhang (David) Chen |
| author_facet | Li-Ping Tian Liang-Qin Chen Zhi-Meng Xu Zhizhang (David) Chen |
| author_sort | Li-Ping Tian |
| collection | DOAJ |
| description | Like its outdoor counterpart (e.g., GPS), an indoor tracking system can bring about disruptive changes in how we live and work. This paper proposes a location and tracking system using a single WiFi link based on channel state information. The system can realize real-time, decimeter-level localization and tracking. In this system, phase calibration and static path elimination are realized by multiplying the conjugate signals of different antennas. Then, a three-dimensional MUSIC algorithm is employed to estimate the angle of arrival (AOA), the time of flight (TOF), and the velocity of a target. A scheme is then developed to adjust the MUSIC search range and reduce the computation time from about ten hours to tens of seconds. The Widar2.0 data set from Tsinghua University are used for the experiments; the proposed system is found to have an average tracking error of 0.68 m in the three environments of classroom, office, and corridor, which is better than the existing single link localization and tracking system. |
| first_indexed | 2024-03-11T04:08:19Z |
| format | Article |
| id | doaj.art-c8065ce339054b64aaeefcf12ad95688 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T04:08:19Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-c8065ce339054b64aaeefcf12ad956882023-11-17T23:40:30ZengMDPI AGRemote Sensing2072-42922023-05-01159246110.3390/rs15092461A Localization and Tracking System Using Single WiFi LinkLi-Ping Tian0Liang-Qin Chen1Zhi-Meng Xu2Zhizhang (David) Chen3Fujian Chuanzheng Communications College, Fuzhou 350007, ChinaSchool of Physics and Information Engineering, Fuzhou University, Fuzhou 350008, ChinaSchool of Physics and Information Engineering, Fuzhou University, Fuzhou 350008, ChinaSchool of Physics and Information Engineering, Fuzhou University, Fuzhou 350008, ChinaLike its outdoor counterpart (e.g., GPS), an indoor tracking system can bring about disruptive changes in how we live and work. This paper proposes a location and tracking system using a single WiFi link based on channel state information. The system can realize real-time, decimeter-level localization and tracking. In this system, phase calibration and static path elimination are realized by multiplying the conjugate signals of different antennas. Then, a three-dimensional MUSIC algorithm is employed to estimate the angle of arrival (AOA), the time of flight (TOF), and the velocity of a target. A scheme is then developed to adjust the MUSIC search range and reduce the computation time from about ten hours to tens of seconds. The Widar2.0 data set from Tsinghua University are used for the experiments; the proposed system is found to have an average tracking error of 0.68 m in the three environments of classroom, office, and corridor, which is better than the existing single link localization and tracking system.https://www.mdpi.com/2072-4292/15/9/2461angle of arrival (AOA)channel state information (CSI)Dopplerindoor trackingKalman filterMUSIC |
| spellingShingle | Li-Ping Tian Liang-Qin Chen Zhi-Meng Xu Zhizhang (David) Chen A Localization and Tracking System Using Single WiFi Link Remote Sensing angle of arrival (AOA) channel state information (CSI) Doppler indoor tracking Kalman filter MUSIC |
| title | A Localization and Tracking System Using Single WiFi Link |
| title_full | A Localization and Tracking System Using Single WiFi Link |
| title_fullStr | A Localization and Tracking System Using Single WiFi Link |
| title_full_unstemmed | A Localization and Tracking System Using Single WiFi Link |
| title_short | A Localization and Tracking System Using Single WiFi Link |
| title_sort | localization and tracking system using single wifi link |
| topic | angle of arrival (AOA) channel state information (CSI) Doppler indoor tracking Kalman filter MUSIC |
| url | https://www.mdpi.com/2072-4292/15/9/2461 |
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