Application of non-stationary iterative time-domain deconvolution
Application of non-stationary iterative time-domain deconvolution
复制标题
非平稳迭代时域反卷积的应用
DOI:
10.1007/s11200-019-1165-z
复制
发表时间:
2020
影响因子:
0.9
通讯作者:
Nowack, Robert L.
中科院分区:
文献类型:
--
作者:
Erhan, Ergun;Nowack, Robert L.
In this study, non-stationary iterative time-domain deconvolution (CNS-ITD) is investigated. The propagating wavelets are first estimated in several overlapping Gabor windows of the data. Matrix-vector operations in the time-domain are then performed by estimating a small number of columns of the wavelet matrix by interpolation within a sparse iterative estimation for the largest reflectivities. The iteration process is stopped when a minimum root mean square (RMS) residual or a maximum number of iterations is reached. Although initially formulated on the basis of work in earthquake seismology, CNS-ITD is a matching pursuit type of approach performed continuously in the time-domain for the non-stationary case. The results can then be convolved with a higher frequency wavelet in order to make the results stationary in time and to increase the resolution of the data. We first apply CNS-ITD to synthetic data with a time-varying attenuation, where the method successfully identifies the largest reflectors in the data. We then apply CNS-ITD to two observed shallow seismic datasets where improved resolution is obtained.
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DOI:
10.1190/segam2019-3215862.1
发表时间:
2019
期刊:
SEG Technical Program Expanded Abstracts 2019
影响因子:
--
作者:
Jiangfeng Zheng;Zhijun Zhang;Jialin Sun;Gongli Liu
通讯作者:
Gongli Liu
影响因子:
3.3
作者:
D. Steeples
通讯作者:
D. Steeples
影响因子:
3.3
作者:
R. Mohebian;M. Yari;M. Riahi;M. Vanaki
通讯作者:
M. Vanaki
影响因子:
3.3
作者:
G. Baker;D. Steeples;M. Drake
通讯作者:
M. Drake
影响因子:
3.3
作者:
G. Baker
通讯作者:
G. Baker