Phase-of-arrival-based localization of passive UHF RFID tags

Phase-of-arrival-based localization of passive UHF RFID tags

This paper introduces a novel 2D localization system for passive UHF RFID tags based on phase-of-arrival evaluation of the backscattered tag signal received by several antennas. To improve localization accuracy and reduce disturbances caused by multipath propagation, we employ a frequency-stepped co...

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Hauptverfasser: Scherhaufl, Martin, Pichler, Markus, Muller, Dominik, Ziroff, Andreas, Stelzer, Andreas
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Antenna measurements
Estimation
Passive RFID tags
Phase estimation
Position measurement
radiofrequency identification
Receiving antennas
RFID tags
UHF measurements
UHF technology
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Beschreibung
Zusammenfassung:This paper introduces a novel 2D localization system for passive UHF RFID tags based on phase-of-arrival evaluation of the backscattered tag signal received by several antennas. To improve localization accuracy and reduce disturbances caused by multipath propagation, we employ a frequency-stepped continuous waveform approach. To achieve proof of concept, a local position measurement system demonstrator comprising an RFID reader, passive EPC Gen 2 RFID tags, several receivers, baseband hardware, and signal processing was used for measurements in an anechoic chamber.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2013.6697558