Referenced Items are not available for this document.
In this paper, we present an UHF RFID location tracking system, which is based on measuring the phases of back scattered signals from RFID tag using multiple spatially distributed antennas at a single carrier frequency. The wavelength ambiguity of the phase measurements is resolved by using the extended Kalman filter (EKF) and the Rauch-Tung-Striebel (RTS) smoother, where the state includes the position, velocity and the phase offsets of antennas. The performance of the method is experimentally verified at 890 MHz using a commercially available RFID reader.
Published in:
Sensors Journal, IEEE
(Volume:12
,
Issue:
5
)
Date of Publication: May 2012
- Page(s):
- 904 - 910
- ISSN :
- 1530-437X
- INSPEC Accession Number:
- 12650270
- Digital Object Identifier :
- 10.1109/JSEN.2011.2164062
- Product Type:
- Journals & Magazines
- Date of Publication :
- 08 August 2011
- Date of Current Version :
- 05 April 2012
- Issue Date :
- May 2012
- Sponsored by :
- IEEE Sensors Council
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