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26517 Near field phased array DOA and range estimation of UHF RFID tags
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Huiting, J. and Kokkeler, A.B.J. and Smit, G.J.M. (2015) Near field phased array DOA and range estimation of UHF RFID tags. In: International EURASIP Workshop on RFID Technology, EURFID 2015, 22-23 Oct 2015, Rosenheim, Germany. pp. 103-107. IEEE Computer Society. ISBN 978-3-2000-3736-6

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Official URL: http://dx.doi.org/10.1109/EURFID.2015.7332393

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Abstract

This paper presents a near field localization system based on a phased array for UHF RFID tags. To estimate angle and range the system uses a two-dimensional MUSIC algorithm. A four channel phased array is used to experimentally verify the estimation of angle and range for an EPC gen2 tag. The system is calibrated for phase offsets introduced by hardware as simulations show the sensitivity to these offsets. Experiments with this calibrated receiver array give inaccurate ranging estimates. A solution is to calibrate the system for every angle, allowing meaningful range estimates. Experiments in a different environment show a reduced result, indicating the need for extensive calibration.

Item Type:Conference or Workshop Paper (Full Paper, Talk)
Research Group:EWI-CAES: Computer Architecture for Embedded Systems
Research Program:CTIT-General
Research Project:TSP: Tracking, tracing, Sensoring Platform
ID Code:26517
Status:Published
Deposited On:14 December 2015
Refereed:Yes
International:Yes
More Information:statisticsmetis

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