TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Shrena, Ismail A1 - Eisele, David A1 - Bardong, Jochen A1 - Mayer, Elena A1 - Reindl, Leonhard Michael T1 - High-precision signal processing algorithm to evaluate SAW properties as a function of temperature JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control N2 - This paper presents a signal processing algorithm which accurately evaluates the SAW properties of a substrate as functions of temperature. The investigated acoustic properties are group velocity, phase velocity, propagation loss, and coupling coefficient. With several measurements carried out at different temperatures, we obtain the temperature dependency of the SAW properties. The analysis algorithm starts by reading the transfer functions of short and long delay lines. The analysis algorithm determines the center frequency of the delay lines and obtains the delay time difference between the short and long delay lines. The extracted parameters are then used to calculate the acoustic properties of the SAW material. To validate the algorithm, its accuracy is studied by determining the error in the calculating delay time difference, center frequency, and group velocity. KW - Signaltechnik KW - Verfahrenstechnik KW - Akustische Oberflächenwelle Y1 - 2013 SN - 0885-3010 SS - 0885-3010 U6 - https://doi.org/10.1109/TUFFC.2013.2629 DO - https://doi.org/10.1109/TUFFC.2013.2629 PM - 23549541 VL - 60 IS - 4 SP - 805 EP - 813 ER -