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Position Estimation of RFID based Sensors Using Surface Acoustic Wave Devices

Authors:
Martin Brandl
Karlheinz Kellner

Keywords: RFID tags; position measurement; chirp modulation; surface acoustic wave devices; correlation

Abstract:
A lot of all-day products are equipped with radio frequency identification (RFID) tags to enable a wireless identification, payment etc. For a lot of applications, especially for sensor based applications, location information of the RFID based sensor tag would be helpful. In this paper an accurate and robust method for position estimation of RFID tags based on time of arrival (ToA) calculation of a transmitted broadband spread spectrum signal is described. The used spread spectrum waveforms are broadband chirp signals which are generated by passive surface acoustic wave devices (SAW). The performance of RFID position estimation under additive white Gaussian noise (AWGN) conditions was simulated.

Pages: 6 to 8

Copyright: Copyright (c) IARIA, 2016

Publication date: May 22, 2016

Published in: conference

ISSN: 2308-4030

ISBN: 978-1-61208-473-2

Location: Valencia, Spain

Dates: from May 22, 2016 to May 26, 2016