Optimized signal processing for FMCW interrogated reflective delay line-type SAW sensors

Ville Viikari; Kimmo Kokkonen; Johanna Meltaus

doi:10.1109/TUFFC.961

Optimized signal processing for FMCW interrogated reflective delay line-type SAW sensors

Ville Viikari, Kimmo Kokkonen, Johanna Meltaus

VTT Technical Research Centre of Finland

Helsinki University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

5 Citations (Scopus)

Abstract

This correspondence presents an optimized frequency modulated continuous-wave (FMCW) interrogation procedure for reflective delay line-type SAW sensors. In this method, the time delays between reflections are obtained with Fourier transform from optimally windowed frequency response. Optimal window functions maximize the signal-to-interference ratio at chosen temporal points of interest. The method is experimentally verified and its accuracy is compared with that of a Fourier transform from Hamming-windowed frequency response.

Original language	English
Pages (from-to)	2522-2526
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	55
Issue number	11
DOIs	https://doi.org/10.1109/TUFFC.961
Publication status	Published - 2008
MoE publication type	A1 Journal article-refereed

Keywords

Fourier transforms
radio frequency identification (RFID)
surface acoustic waves
wireless sensor

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10.1109/TUFFC.961

https://publications.vtt.fi/julkaisut/muut/2008/Optimized_signal.pdf

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title = "Optimized signal processing for FMCW interrogated reflective delay line-type SAW sensors",

abstract = "This correspondence presents an optimized frequency modulated continuous-wave (FMCW) interrogation procedure for reflective delay line-type SAW sensors. In this method, the time delays between reflections are obtained with Fourier transform from optimally windowed frequency response. Optimal window functions maximize the signal-to-interference ratio at chosen temporal points of interest. The method is experimentally verified and its accuracy is compared with that of a Fourier transform from Hamming-windowed frequency response.",

keywords = "Fourier transforms, radio frequency identification (RFID), surface acoustic waves, wireless sensor",

author = "Ville Viikari and Kimmo Kokkonen and Johanna Meltaus",

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AU - Meltaus, Johanna

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PY - 2008

Y1 - 2008

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AB - This correspondence presents an optimized frequency modulated continuous-wave (FMCW) interrogation procedure for reflective delay line-type SAW sensors. In this method, the time delays between reflections are obtained with Fourier transform from optimally windowed frequency response. Optimal window functions maximize the signal-to-interference ratio at chosen temporal points of interest. The method is experimentally verified and its accuracy is compared with that of a Fourier transform from Hamming-windowed frequency response.

KW - Fourier transforms

KW - radio frequency identification (RFID)

KW - surface acoustic waves

KW - wireless sensor

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DO - 10.1109/TUFFC.961

M3 - Article

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ER -

Optimized signal processing for FMCW interrogated reflective delay line-type SAW sensors

Abstract

Keywords

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