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在简要回顾几种插值方法的基础上 ,提出了基于信号重构的地震道插值方法。这种方法无需任何地质和地球物理假设 ,主要用于恢复缺失的地震道。本方法的基础是傅立叶变换理论和最小平方反演技术。文中给出了原理、算法、实现步骤及简要的流程框图。如果对变换域的参数进行规则采样 ,则该方法可以用高效、快速的算法来实现。本插值方法适用于规则和非规则采样的数据。文中给出了理论合成数据和实际数据的试验结果 ,并对结果进行了讨论。同时 ,本方法对于 AVO分析、DMO处理、三维叠前偏移成像等研究也将是有益的
Based on a brief review of several interpolation methods, a seismic trace interpolation method based on signal reconstruction is proposed. This method does not require any geological and geophysical assumptions and is mainly used to recover missing seismic traces. The method is based on the Fourier transform theory and the least squares inversion technique. The paper gives the principle, algorithm, implementation steps and a brief flow chart. If the parameters of the transform domain are regularly sampled, the method can be implemented with an efficient and fast algorithm. This interpolation method is suitable for regular and irregular sampling of data. The experimental results of the theoretical synthesis data and the actual data are given, and the results are discussed. At the same time, this method will also be useful for AVO analysis, DMO processing and 3D prestack migration imaging