Abstract
This paper presents a 2d localization system for
UHF RFID tags. By measuring the phase between the transmitted
continuous wave and received backscatter from the tag
at different frequencies, it is possible to estimate the distance
between the reader and tag. By determining distance estimates
to three antennas it is possible to determine a location of a tag
with the help of trilateration. The location of the antennas has
to be known and any error in distance measurement influences
the location estimate. Mainly to overcome the expected impact
of the environment on the distance estimate, we opt for the use
of reference tags and the K-Nearest Neighbor (KNN) algorithm
to derive a location. An experiment is done and results are
compared with an KNN algorithm based on received signal
strength. Furthermore some experiments are done to verify the
use of phase measurements for the detection of stationary tags
in a portal application.
Original language | English |
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Title of host publication | 2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA) |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-4 |
Number of pages | 4 |
ISBN (Print) | 978-1-4673-4656-6 |
DOIs | |
Publication status | Published - 4 Sept 2013 |
Event | 2013 IEEE International Conference on RFID-Technologies and Applications, RFID-TA 2013 - Zon Regency Hotel, Johor Bahru, Malaysia Duration: 4 Sept 2013 → 5 Sept 2013 |
Conference
Conference | 2013 IEEE International Conference on RFID-Technologies and Applications, RFID-TA 2013 |
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Abbreviated title | RFID-TA |
Country/Territory | Malaysia |
City | Johor Bahru |
Period | 4/09/13 → 5/09/13 |