本文以P波和SV波波场比值,提出层状介质情况下透射波波场的反向重建算法原理,并据此给出在已知介质速度值时,求介质层厚度的反演方法。文中还以深源远震记录波形资料给出反演算例,证实本文的算法是可行的。 In this paper, the principle of reverse reconstruction of the transmitted wavefield in the case of layered media is proposed based on the P wave and SV wavefield ratios, and the inversion of the dielectric layer thickness is given when the velocity of the media is known. In the paper, the inversion example is also given by the waveform data of deep-source teleseismic records, which proves that the algorithm in this paper is feasible.