【摘要】 基于构建虚同相轴来估计层间多次波的方法是克希霍夫积分表示定理的一个延伸发展.本文通过构建虚地震同相轴巧妙地将散射点从地下移到了表面,利用表面的散射点来预测层间多次波.由于预测与实际地震记录中的层间多次波振幅存在偏差,采用了多道的L1范数匹配算法来实现真振幅的多次波压制.对简单模型和南黄海地质模型的数据处理实例验证了本文研究方法的正确性和有效性.更多还原

【Abstract】 The method of estimating internal multiple based on constructing virtual events is an extended result of Kirchhoff integral representation theorem.In this paper,the downward reflection point is shifted from subsurface to free surface skillfully by constructing virtual events,and then the internal multiple can be predicted simply by using surface scattering points without subsurface information.After estimation of multiple,a multi-channel L1 norm matching method is used to implement true amplitude multiple subtraction.In addition,the examples of seismic data processing results of a simple model and a South Yellow Sea geological model verify the accuracy and effectiveness of the method developed in this paper.更多还原