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The attenuated Ricker wavelet basis for seismic trace decomposition and attenuation analysis
Author(s) -
Zhang Xuebing,
Liu Cai,
Feng Xuan,
Li Bonan,
Li Kexin,
You Qin
Publication year - 2020
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/1365-2478.12846
Subject(s) - wavelet , seismic trace , attenuation , matching pursuit , geology , basis (linear algebra) , context (archaeology) , matching (statistics) , basis pursuit , computer science , seismology , algorithm , mathematics , artificial intelligence , statistics , optics , paleontology , physics , geometry , compressed sensing
The widely used wavelets in the context of the matching pursuit are mostly focused on the time–frequency attributes of seismic traces. We propose a new type of wavelet basis based on the classic Ricker wavelet, where the quality factor Q is introduced. We develop a new scheme for seismic trace decomposition by applying the multi‐channel orthogonal matching pursuit based on the proposed wavelet basis. Compared with the decomposition by the Ricker wavelets, the proposed method could use fewer wavelets to represent the seismic signal with fewer iterations. Besides, the quality factor of the subsurface media could be extracted from the decomposition results, and the seismic attenuation could be compensated expediently. We test the availability of the proposed methods on both synthetic seismic record and field post‐stack data.