Automatic Determination of Dispersion Curves

A032 Automatic determination of dispersion curves Introduction 1 The well known and widely used Spectral Analysis of Surface Waves (SASW) and Multi- Channel Analysis of Surface Waves (MASW) methods of shear wave velocity (Vs) determination have crucial steps. One of these important points is the accurate determination of the dispersion data of Rayleigh waves because obviously these data influence the results of all further processing steps. In the classical SASW the method of determining dispersion data is the cross-power spectrum of surface waves received by two geophones. Although the proper distance of the geophone pair provides good horizontal resolution the