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根据均匀半空间Rayleigh波相速度与介质剪切波速度之间的关系，对某一频率面波的影响深度内各层介质进行“均匀”化，使其等效于均匀半空间．并利用模型进行正演，以确定在这种均匀化的前提下，面波勘探深度与波长的关系．应用相匹配滤波技术从实测面波信号中分离出基阶Rayleigh波信号，对它进行多重滤波和叠加处理，精确地计算出5．0-30．0Hz之间的基阶面波相、群速度频散．使用“均匀”化的方法，从相速度频散曲线中获得反演的初始模型，利用群速度频散反演得到35m以上各土层的剪切波速度结构．结果表明，反演结果与钻孔资料较为吻合
According to the relationship between the phase velocities of Rayleigh waves and the shear wave velocity in a uniform half-space, the “medium” of the media in each layer within the depth of influence of a certain frequency surface wave is equivalent to a uniform half-space. And use the model for forward modeling to determine the relationship between the depth of surface wave exploration and the wavelength under the premise of this homogenization. The matched Rayleigh wave signal is separated from the measured surface wave signal by using the matched filtering technique. The Rayleigh wave signal is multi-filtered and superposed, and the fundamental-order wave phase between 5.0-30.0Hz is accurately calculated. The group velocity Dispersion. Using the method of “even”, the initial model of inversion was obtained from the phase velocity dispersion curve, and the shear wave velocity structure of each layer above 35m was obtained by using the group velocity dispersion inversion. The results show that the inversion results are in good agreement with the drilling data