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《Chinese Journal of Geophysics》 2012-01
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Study of three-term non-Gaussian pre-stack inversion method

LIU Yang1,ZHANG Jia-Shu1,HU Guang-Min2,HE Zhen-Hua3 1 Sichuan Key Lab of Signal and Information Processing,Southwest Jiaotong University,Chengdu 610031,China 2 Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks,University of Electronic Science and Technology of China,Chengdu 611731,China 3 State Key Laboratory of Oil and Gas Reservoir Geology and Exploration,Chengdu University of Technology, Chengdu 610059,China  
In view of the wide use of the "Gaussian distribution hypothesis of noise" in the geophysical inversion problems,we study the non-Gaussian distribution characteristics of the noises in the pre-stack seismic data.Upon this analysis,the concept of non-Gaussian inversion of pre-stack three-term inversion is put forward,in which the mixed-norm is proposed for suppressing both the Gaussian and non-Gaussian noises.In view of the non-conductivity of the objective function,the Powell algorithm is used to solve the objective function.Model test and real seismic data inversion results show the correctness and reliability of the algorithm.
【Fund】: 国家自然科学基金项目(40839905 60971104);; 中央高校基本科研业务费专项资金(SWJTU09ZT16 SWJTU11CX121)资助
【CateGory Index】: P631.4
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