Seismic and electromagnetic controlled‐source interferometry in dissipative media
Seismic and electromagnetic controlled‐source interferometry in dissipative media
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DOI：
10.1111/j.1365-2478.2007.00686.x
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发表时间：
2008-04
影响因子：
2.6
通讯作者：
K. Wapenaar;E. Slob;R. Snieder
中科院分区：
文献类型：
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作者：
K. Wapenaar;E. Slob;R. Snieder
地震干涉测量通过对现有地震响应进行互相关来生成新的地震响应。大多数干涉测量方法的主要假设之一是介质是无损的。我们开发了一种“反卷积干涉测量”方法来规避这一假设。所提出的方法不仅适用于地震波，而且适用于耗散介质中的任何类型的扩散和/或波场。这为将干涉测量法应用于受控源电磁（CSEM）数据开辟了道路。反卷积干涉测量法用均匀半空间取代了覆盖层，从而解决了 CSEM 应用的浅海问题。我们通过数值模拟 CSEM 数据证明了这一点。
Seismic interferometry deals with the generation of new seismic responses by crosscorrelating existing ones. One of the main assumptions underlying most interferometry methods is that the medium is lossless. We develop an ‘interferometry‐by‐deconvolution’ approach which circumvents this assumption. The proposed method applies not only to seismic waves, but to any type of diffusion and/or wave field in a dissipative medium. This opens the way to applying interferometry to controlled‐source electromagnetic (CSEM) data. Interferometry‐by‐deconvolution replaces the overburden by a homogeneous half space, thereby solving the shallow sea problem for CSEM applications. We demonstrate this at the hand of numerically modeled CSEM data.