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Type: Artigo de Periódico
Title: A Fast Algorithm For Sparse Multichannel Blind Deconvolution
Author: Nose
K; Takahata
AK; Lopes
R; Romano
Abstract: We have addressed blind deconvolution in a multichannel framework. Recently, a robust solution to this problem based on a Bayesian approach called sparse multichannel blind deconvolution (SMBD) was proposed in the literature with interesting results. However, its computational complexity can be high. We have proposed a fast algorithm based on the minimum entropy deconvolution, which is considerably less expensive. We designed the deconvolution filter to minimize a normalized version of the hybrid l(1)/l(2)-norm loss function. This is in contrast to the SMBD, in which the hybrid l(1)/l(2)-norm function is used as a regularization term to directly determine the deconvolved signal. Results with synthetic data determined that the performance of the obtained deconvolution filter was similar to the one obtained in a supervised framework. Similar results were also obtained in a real marine data set for both techniques.
Citation: Geophysics. SOC EXPLORATION GEOPHYSICISTS, n. 81, n. 1, p. V7 - V16.
Rights: aberto
Identifier DOI: 10.1190/GEO2015-0069.1
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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