Liqiong Chang
ABSTRACT
This paper introduces a wireless phase calibration algorithm that can be applied on cheap commercial off-the-shelf (COTS) radio frequency identification (RFID) system and auto acquire an accurate radio frequency (RF) phase information without any offline training. The key observation is that the raw phase measurements even measured form different RFID tags contain a same set of unknown phase errors. With enough tags' phase measurements, we can determine all the unknown phase errors, since the number of known phase measurements is much larger than the number of unknown phase errors. Real-world experimental results demonstrate the effectiveness of the proposed method.
- R. O. Schmidt. Multiple emitter location and signal parameter estimation. IEEE Trans. on Antennas and Propagation, 34(3):276--280, 1986.Google Scholar
Cross Ref
- J. Wang, D. Vasisht, and D. Katabi. Rf-idraw: virtual touch screen in the air using rf signals. In Proc. ACM SIGCOMM, pages 235--246, 2014. Google ScholarDigital Library
- J. Xiong and K. Jamieson. Arraytrack: a fine-grained indoor location system. In Proc. USENIX NSDI, pages 71--84, 2013. Google ScholarDigital Library
- L. Yang, Y. Chen, X.-Y. Li, C. Xiao, M. Li, and Y. Liu. Tagoram: real-time tracking of mobile rfid tags to high precision using cots devices. In Proc. ACM MobiCom, pages 237--248, 2014. Google ScholarDigital Library
Index Terms
- Low-cost wireless phase calibration that works on COTS RFID systems: poster
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