Abstract
This paper introduces a 2D localization system for passive UHF RFID tags based on phase evaluation of the backscattered transponder signals. To increase the accuracy and robustness of the position estimates an inverse synthetic aperture radar approach is performed. A MIMO system where paths take turns to act as transmitter with the remaining paths serving as receivers, is used to enable the position estimation. For proof of concept, a local position measurement system demonstrator comprising an RFID reader, passive EPC Gen 2 RFID tags, several transceivers, baseband hardware, and signal processing was built. Measurements were carried out in an indoor office environment, which was surrounded by drywalls and concrete floor and ceiling, and the experimental results show a robust and accurate localization with a root-mean-square deviation below 0.1 and a median error of 0.01m.
| Original language | English |
|---|---|
| Title of host publication | RFID (IEEE RFID), 2014 IEEE International Conference on |
| Pages | 82-88 |
| Number of pages | 7 |
| DOIs | |
| Publication status | Published - Apr 2014 |
Fields of science
- 202019 High frequency engineering
- 202029 Microwave engineering
- 202033 Radar technology
- 202 Electrical Engineering, Electronics, Information Engineering
JKU Focus areas
- Mechatronics and Information Processing