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Seismic data reconstruction by combining minimum weighted norm interpolation and band extension via modulation
Author(s): 
Pages: 340-350
Year: Issue:  3
Journal: Acta Seismologica Sinica

Keyword:  最小加权范数插值调制升频反假频地震数据重建;
Abstract: 提出一种新的反假频地震数据重建的两步算法, 将最小加权范数插值(MWNI)方法与调制升频方法有效地结合起来.首先利用MWNI方法构建数据谱的低频部分, 为了提高计算效率, 在低频重建算法中, 引入了预条件共轭梯度法求解反问题方程, 并使用了与频率有关的变波数带宽技术; 然后, 基于重建的低频数据, 采用调制升频方法重构数据的高频部分. 调制升频方法灵活, 简便, 能有效地从低频资料中恢复出高频成分...
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