An Algorithm for Solving the Phase Ambiguity Problem of SAW Delay-Line Sensor Systems

Junhao Cao,Zixiao Lu,Yahui Tian,Leonhard M Reindl, Weijie Li,Dayong Huang,Zaiqi Tang,Honglang Li,Wei Luo

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control（2022）

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摘要

Solving the phase ambiguity problem is crucial to achieving a wide-range and high-precision measurement for the frequency-domain sampling (FDS)-based surface acoustic wave (SAW) delay-line sensor systems. This study proposes an improved phase estimation algorithm called dual-band phase estimation (DBPE) to solve the problem. By using DBPE, the SAW sensor system can obtain an extensive and alterabl...

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关键词

Surface acoustic waves,Temperature measurement,Frequency measurement,Phase measurement,Frequency estimation,Phase estimation,Sensor systems

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