Abstract
Summary Most of the commonly used methods for enhancing the resolution of seismic data are based on stationary convolution model, which assume that the seismic wavelet is not varying with traveling time. However, it is not consistent with the actual propagation of wavelet. To overcome this shortage, we propose a new method to enhance seismic resolution based on the nonstationary convolution model. The main contribution of our work is that we develop a new Q estimation approach via the variational method in the S-domain. Compared with the methods of Q estimation in time or frequency domain alone, this method can effectively avoid the coupling effect of absorption and scattering. Synthetic and field data examples are applied to illustrate the effectiveness of the proposed method in enhancing the resolution of seismic data.
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