A short note on phase and amplitude tracking for seismic event separation

A short note on phase and amplitude tracking for seismic event separation
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DOI:
10.1190/segam2015-5848430.1
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发表时间:
2015-08
期刊:
Seg Technical Program Expanded Abstracts
影响因子:
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通讯作者:
Y. Li;L. Demanet
Y. Li;L. Demanet
中科院分区:
其他
文献类型:
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作者:
Y. Li;L. Demanet

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我们提出了一种将地震记录分解成由平滑相位和平滑振幅定义的原子事件的方法。该方法使用迭代细化扩展跟踪计划,以尽量减少高度非凸的目标函数。我们证明了所提出的方法上的噪声合成记录从浅Marmousi模型。最后,我们展示了我们的方法的应用,低频外推相同的记录。本文是Li and Demanet(2015)的简短版本。
We propose a method for decomposing a seismic record into atomic events defined by a smooth phase and a smooth amplitude. The method uses an iterative refinement-expansion tracking scheme to minimize the highly nonconvex objective function. We demonstrate the proposed method on a noisy synthetic record from the shallow Marmousi model. Finally, we show an application of our method to low frequency extrapolation on the same record. This note is a short version of Li and Demanet (2015).