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Open AccessJournal ArticleDOI

Position estimation of RFID-based sensors using SAW compressive receivers

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TLDR
An accurate and easy to implement method for wireless position estimation of RFID devices is described in this paper and an improvement in the mean square position error in the range of the chirp compression gain was found.
Abstract
Wireless data acquisition and data fusion in medical and environmental applications is mainly based on additional information like the position of the sensor device. An accurate and easy to implement method for wireless position estimation of RFID devices is described in this paper. For RFID communication and data transmission, the tags operate within the 13.56 MHz ISM-band with a standardized protocol defined in ISO 14443. The RFID-tag position estimation is done by transmitting linear chirp signals from the RFID tag to base stations on RF frequencies. The chirp signals are generated by SAW devices which are triggered by a low power consumption pulse generator based on an avalanche transistor. The performance of position estimation under AWGN conditions was simulated and compared with common methods. An improvement in the mean square position error in the range of the chirp compression gain was found.

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Citations
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Fast time-domain laser Doppler vibrometry characterization of surface acoustic waves devices

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Proceedings ArticleDOI

Beacon-based proximity detection using compressive sensing for sparse deployment

TL;DR: The interaction between Bluetooth Low Energy Beacon and smartphone is exploited to set forth the fundamental building block of a beacon-based PBS system and the results prove the reliability of the proposed algorithm with high detection accuracy in an environment with sparse deployment.
Journal ArticleDOI

Spread Spectrum based RFID Position Estimation for Sensor Applications

TL;DR: A method based on passive SAW compressive receivers is presented to enhance the transmission distance for RFID tag ranging and the position estimation was done by active transmission of chirp pulses by the RFID sensor-tag and TDoA measurements at the receivers.
References
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Electrochemical Supercapacitors : Scientific Fundamentals and Technological Applications

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Energy Harvesting Sensor Nodes: Survey and Implications

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TL;DR: This comprehensive handbook offers gaps of available localization books presenting in-depth coverage from fundamentals of coordinates to advanced application examples.
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