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Multichannel Deconvolution of Seismic Signals Using Statistical MCMC Methods

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3 Author(s)
Ram, I. ; Dept. of Electr. Eng., Technion - Israel Inst. of Technol., Haifa, Israel ; Cohen, I. ; Raz, S.

In this paper, we propose two multichannel blind deconvolution algorithms for the restoration of two-dimensional (2D) seismic data. Both algorithms are based on a 2D reflectivity prior model, and use iterative multichannel deconvolution procedures which deconvolve the seismic data, while taking into account the spatial dependency between neighboring traces. The first algorithm employs in each step a modified maximum posterior mode (MPM) algorithm which estimates a reflectivity column from the corresponding observed trace using the estimate of the preceding reflectivity column. The second algorithm takes into account estimates of both the preceding and subsequent columns in the estimation process. Both algorithms are applied to synthetic and real data and demonstrate better results compared to those obtained by a single-channel deconvolution method. Expectedly, the second algorithm which utilizes more information in the estimation process of each reflectivity column is shown to produce better results than the first algorithm.

Published in:

Signal Processing, IEEE Transactions on  (Volume:58 ,  Issue: 5 )

Date of Publication:

May 2010

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