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《Progress in Geophysics》 2013-06
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The least square pre-stack depth migration on complex media

HUANG Jian-ping;LI Zhen-chun;LIU Yu-jin;KONG Xue;CAO Xiao-li;XUE Zhi-guang;Department of Geophysics,School of Geosciences,China University of Petroleum;  
As the development of the exploratory,more and more complexity for the background setting of the exploratory area,as well as the image resolution.As a result,many high resolution image methods arise like mushrooms after rain.In this paper,we deduced the theory of Least Square Migration(LSM) method,and then,we test our LSM method via the SEG-EAGE salt velocity model.The image result suggests that the LSM has a good adaptability and high image resolution for the complex media.At the same time,the comparison image result of our method and other traditional image methods,such as Fourier Finite Difference(FFD) migration method,XWFD pre-stack migration with error compensation and the General Screen Method(GSM) shows that LSM method has a better adaptive for the complex media,especially for the deeper part of the model.
【Fund】: 国家973项目(2011CB202402);; 国家自然科学基金(41104069 41274124);; 山东省自然科学基金(ZR2011DQ016)联合资助
【CateGory Index】: P631.4
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