Accurate round-trip delay-time estimator for simultaneous identification of multiple SAW ID tags

In this paper an iterative method of accurate round-trip delay-time (RTDT) estimation is presented. Using this method, it is possible to take imperfections like amplitude and phase distortions into account and avoid biased RTDT estimates. Those accurate RTDT estimates are a prerequisite for precise...

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Bibliographic Details
Main Authors: Klaffenbock, Maria, Schuster, Stefan, Scheiblhofer, Stefan, Stelzer, Andreas
Format: Conference Proceeding
Language:English
Subjects:
Distortion measurement
Estimation
Phase distortion
Sensors
Signal to noise ratio
Surface acoustic waves
Temperature measurement
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Summary:In this paper an iterative method of accurate round-trip delay-time (RTDT) estimation is presented. Using this method, it is possible to take imperfections like amplitude and phase distortions into account and avoid biased RTDT estimates. Those accurate RTDT estimates are a prerequisite for precise grid estimation of pulse position coded surface acoustic wave tags as a fundament for further identification and the possibility of a grid refinement and/or larger reading ranges.
ISSN:1051-0117
DOI:10.1109/ULTSYM.2013.0259