RFreeTrack: RFID non-contact robust positioning system based on differential phase holography
To address the issue of large positioning errors in complex environments within non-contact RFID-based positioning systems, RFreeTrack system was proposed.Commercial RFID equipment was used to calculate the reflected signals from targets, achieving high-precision non-contact positioning in complex e...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2024-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024054/ |
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| author | Linqing GUI Yi JIANG Qingyun ZHANG Fu XIAO |
| author_facet | Linqing GUI Yi JIANG Qingyun ZHANG Fu XIAO |
| author_sort | Linqing GUI |
| collection | DOAJ |
| description | To address the issue of large positioning errors in complex environments within non-contact RFID-based positioning systems, RFreeTrack system was proposed.Commercial RFID equipment was used to calculate the reflected signals from targets, achieving high-precision non-contact positioning in complex environment.Firstly, a search method based on time-series similarity was proposed to employ for calibrating static signals, thus significantly enhanced the robustness of target reflection signal extraction.Secondly, a non-contact positioning method based on differential phase holography was introduced to eliminate the influence of the reader antenna’s position, thus the accuracy of positioning was improved and the complexity of system was deployment reduced as well.Finally, a high-precision non-contact positioning system prototype was realized.Experimental results indicate that in complex environments, the phase of the target reflection signals extracted using the calibrated static signals has a 68.8% lower error compared to existing methods.Based on the previously calibrated static reflection signals, the average positioning error using differential phase holography in complex environments is 0.040 8 m, and has a 50.6% improvement on location over existing methods. |
| format | Article |
| id | doaj-art-19b5cbe3589b446db1fe3b62a12d2cef |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2024-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-19b5cbe3589b446db1fe3b62a12d2cef2025-01-14T06:21:53ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2024-03-01459210359296508RFreeTrack: RFID non-contact robust positioning system based on differential phase holographyLinqing GUIYi JIANGQingyun ZHANGFu XIAOTo address the issue of large positioning errors in complex environments within non-contact RFID-based positioning systems, RFreeTrack system was proposed.Commercial RFID equipment was used to calculate the reflected signals from targets, achieving high-precision non-contact positioning in complex environment.Firstly, a search method based on time-series similarity was proposed to employ for calibrating static signals, thus significantly enhanced the robustness of target reflection signal extraction.Secondly, a non-contact positioning method based on differential phase holography was introduced to eliminate the influence of the reader antenna’s position, thus the accuracy of positioning was improved and the complexity of system was deployment reduced as well.Finally, a high-precision non-contact positioning system prototype was realized.Experimental results indicate that in complex environments, the phase of the target reflection signals extracted using the calibrated static signals has a 68.8% lower error compared to existing methods.Based on the previously calibrated static reflection signals, the average positioning error using differential phase holography in complex environments is 0.040 8 m, and has a 50.6% improvement on location over existing methods.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024054/RFIDindoor localizationnon-contact localizationstatic signal calibrationdifferential phase hologram |
| spellingShingle | Linqing GUI Yi JIANG Qingyun ZHANG Fu XIAO RFreeTrack: RFID non-contact robust positioning system based on differential phase holography Tongxin xuebao RFID indoor localization non-contact localization static signal calibration differential phase hologram |
| title | RFreeTrack: RFID non-contact robust positioning system based on differential phase holography |
| title_full | RFreeTrack: RFID non-contact robust positioning system based on differential phase holography |
| title_fullStr | RFreeTrack: RFID non-contact robust positioning system based on differential phase holography |
| title_full_unstemmed | RFreeTrack: RFID non-contact robust positioning system based on differential phase holography |
| title_short | RFreeTrack: RFID non-contact robust positioning system based on differential phase holography |
| title_sort | rfreetrack rfid non contact robust positioning system based on differential phase holography |
| topic | RFID indoor localization non-contact localization static signal calibration differential phase hologram |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024054/ |
| work_keys_str_mv | AT linqinggui rfreetrackrfidnoncontactrobustpositioningsystembasedondifferentialphaseholography AT yijiang rfreetrackrfidnoncontactrobustpositioningsystembasedondifferentialphaseholography AT qingyunzhang rfreetrackrfidnoncontactrobustpositioningsystembasedondifferentialphaseholography AT fuxiao rfreetrackrfidnoncontactrobustpositioningsystembasedondifferentialphaseholography |