【摘要】 首先将反演技术中的地震子波定义为地震记录与初始模型之间的匹配因子 ;然后分析了现行软件中空变子波求取的办法及存在的问题 ;最后提出了利用地震记录与初始模型联合求子波 ,并采用多道滑动的办法来解决子波空变问题 ,从而使地震子波的求取更为合理准确 ,给约束反演的准确性奠定了良好的基础。应用实例证明 ,此方法是解决子波空变问题的一个好办法。更多还原

【Abstract】 In this paper we assume that seismic wavelet is a match factor between seismic records and initial model. After an analysis of drawbacks associated with software available for calculation of spatial variant wavelet, this paper presents a method to calculate wavelet by a combination of seismic records and initial model. The problem of wavelet varying with space is overcome by multi-trace smoothing. Therefore, the resulting seismic wavelet is more reasonable, which provide a solid foundation for constrained inversion. The feasibility of the method is demonstrated on real seismic data更多还原