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Anelastic Medium Seismic Reflectivity Estimation With L1 Norm and Bregman Iteration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 78th EAGE Conference and Exhibition 2016, May 2016, Volume 2016, p.1 - 5
Abstract
In anelastic medium, the seismic wavelet decays continuously as it propagates. We model the seismic traces with a nonstationary convolution model and estimate the reflectivity coefficients under the inversion framework. The reflectivity coefficients are usually sparse in time. To incorporate this a priori information, we choose L1 norm of the model parameter as the regularization term of the objective functional of the inverse problem. Bregman iterative algorithm is one of the most efficient and precise algorithms to solve this L1 norm based problem. The numerical experiments of synthetic traces and real stacked field data show the capability of the algorithm to solve the seismic reflectivity estimation problems with L1 norm model constraint.