Dispersion analysis of Rayleigh surface waves and application based on Radon transform

To overcome the weakness of SASW method, such as, low precision and the difficulty to calculate high-mode dispersion curves, the computation of velocity dispersion with Radon transform method is improved in this paper, which does not use any digital processing of the original data and avoids the Impact of digital processing like Gibbs effect However it discriminates the direct waves and reflected waves using the frequency analysis and the geological condition of the sites to choose frequency and velocity range It is further verified that the velocity dispersion method is valid and credible by processing synthetic surface wave record and real data, which produced good results