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本文提出了一种确定水平层状介质中速度,密度及层厚度的反演方法,层状介质的顶层为声学介质层。其下方为一组弹性介质层。将介质中纵波点源产生的多偏移距反射响应由时空域变换到频率—波数域后,应用最小平方法使参考数据与模拟数据间差异达到最小,在此基础上完成反演运算。正演模拟以反
In this paper, we propose an inversion method to determine velocity, density and layer thickness in horizontal layered media. The top layer of the layered media is the acoustic media layer. Below it is a set of elastic media layers. After the multi-offset reflection response generated by the longitudinal wave point source in the medium is transformed from the space-time domain to the frequency-wave number domain, the least-squares method is used to minimize the difference between the reference data and the simulated data, and the inversion calculation is completed. Forward modeling to reverse