A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags
In this paper, the multiple-input, multiple-output (MIMO) radar signal processing algorithm is efficiently employed as an anticollision methodology for the identification of multiple chipless radio-frequency identification (RFID) tags. Tag-identifying methods for conventional chipped RFID tags rely...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/24/8314 |
| _version_ | 1797500825621233664 |
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| author | Chen Su Chuanyun Zou Liangyu Jiao Qianglin Zhang |
| author_facet | Chen Su Chuanyun Zou Liangyu Jiao Qianglin Zhang |
| author_sort | Chen Su |
| collection | DOAJ |
| description | In this paper, the multiple-input, multiple-output (MIMO) radar signal processing algorithm is efficiently employed as an anticollision methodology for the identification of multiple chipless radio-frequency identification (RFID) tags. Tag-identifying methods for conventional chipped RFID tags rely mostly on the processing capabilities of application-specific integrated circuits (ASICs). In cases where more than one chipless tag exists in the same area, traditional methods are not sufficient to successfully read and distinguish the IDs, while the direction of each chipless tag can be obtained by applying MIMO technology to the backscattering signal. In order to read the IDs of the tags, beamforming is used to change the main beam direction of the antenna array and to receive the tag backscattered signal. On this basis, the RCS of the tags can be retrieved, and associated IDs can be identified. In the simulation, two tags with different IDs were placed away from each other. The IDs of the tags were successfully identified using the presented algorithm. The simulation result shows that tags with a distance of 0.88 m in azimuth can be read by a MIMO reader with eight antennas from 3 m away. |
| first_indexed | 2024-03-10T03:09:25Z |
| format | Article |
| id | doaj.art-28b0dd58da6b43b9991463528e35a6fa |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T03:09:25Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-28b0dd58da6b43b9991463528e35a6fa2023-11-23T10:29:46ZengMDPI AGSensors1424-82202021-12-012124831410.3390/s21248314A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID TagsChen Su0Chuanyun Zou1Liangyu Jiao2Qianglin Zhang3School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaSchool of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaIn this paper, the multiple-input, multiple-output (MIMO) radar signal processing algorithm is efficiently employed as an anticollision methodology for the identification of multiple chipless radio-frequency identification (RFID) tags. Tag-identifying methods for conventional chipped RFID tags rely mostly on the processing capabilities of application-specific integrated circuits (ASICs). In cases where more than one chipless tag exists in the same area, traditional methods are not sufficient to successfully read and distinguish the IDs, while the direction of each chipless tag can be obtained by applying MIMO technology to the backscattering signal. In order to read the IDs of the tags, beamforming is used to change the main beam direction of the antenna array and to receive the tag backscattered signal. On this basis, the RCS of the tags can be retrieved, and associated IDs can be identified. In the simulation, two tags with different IDs were placed away from each other. The IDs of the tags were successfully identified using the presented algorithm. The simulation result shows that tags with a distance of 0.88 m in azimuth can be read by a MIMO reader with eight antennas from 3 m away.https://www.mdpi.com/1424-8220/21/24/8314chipless radio-frequency identification (RFID) tagmulti-tag identificationMIMO algorithmazimuth estimation |
| spellingShingle | Chen Su Chuanyun Zou Liangyu Jiao Qianglin Zhang A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags Sensors chipless radio-frequency identification (RFID) tag multi-tag identification MIMO algorithm azimuth estimation |
| title | A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags |
| title_full | A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags |
| title_fullStr | A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags |
| title_full_unstemmed | A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags |
| title_short | A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags |
| title_sort | mimo radar signal processing algorithm for identifying chipless rfid tags |
| topic | chipless radio-frequency identification (RFID) tag multi-tag identification MIMO algorithm azimuth estimation |
| url | https://www.mdpi.com/1424-8220/21/24/8314 |
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