Zheng Rui, Le Lawrence H, Sacchi Mauricio D, Lou Edmond
IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Feb;56(2):396-9. doi: 10.1109/TUFFC.2009.1049.
The traditional peak frequency formulation requires the knowledge of the signal wavelet. We improved and applied the method to estimate attenuation for homogeneous silicon rubber and bovine cortical bone without recourse to the wavelet assumption. The estimated values for rubber and bone samples are 6.59 +/- 0.28 dB/MHz/cm and 4.59 +/- 1.09 dB/MHz/cm, respectively, as compared with 6.33 +/- 0.19 dB/ MHz/cm and 5.00 +/- 1.10 dB/MHz/cm, respectively, by the spectral ratio method.
