The attenuated Ricker wavelet basis for seismic trace decomposition and attenuation analysis
X. Zhang, C. Liu, X. Feng, B. Li, K. Li and Q. You
Journal name: Geophysical Prospecting
Issue: Vol 68, No 2, February 2020 pp. 371 - 381
Info: Article, PDF ( 3.81Mb )
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 factorQis 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.