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[1]PAN Ji-shun,TANG Jie,LIU Yue,et al.Inversion for Crustal Structure Using Multiscale SAGA Algorithm[J].Journal of Seismological Research,2008,31(03):255-261.

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Inversion for Crustal Structure Using Multiscale SAGA Algorithm

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 31 Number of periods: 2008 03 Page number: 255-261 Column: Public date: 2008-03-23

Title:: Inversion for Crustal Structure Using Multiscale SAGA Algorithm

Author(s):: PAN Ji-shun¹; 2; TANG Jie³; LIU Yue²; PAN Su-zhen²; (1.North China Institate of Water Conservation and Hydroelectric Power,Zhengzhou 450011, Henan, China; 2. Geophysical Exploration Center, CEA, Zhengzhou 450002, Henan, China)(3. The 3rd Team of Henan Nonferrous Metal Geologic Minerals Bureau, Nanyang 474250, Henan, China)

Keywords:: multiscale successive approximation; tomography of seismic traveltime; SAGA; A'nyemaqen suture zone

CLC:: P315.3⁺1

DOI:: -

Abstract:: SAGA is a combined algorithm of Simulated Annealing(SA)and Genetic Algorithm(GA). The method has the feature of higher searching efficiency than SA or GA alone, but can not radically solve the problem of convergence prematurity of GA. The multiscale SAGA algorithm, which is based on multiscale successive approximation, can effectively solve the problem. We used the method to reconstruct an anomalous high-velocity body in a numerical test model, and to study the upper crustal structure characteristics of the eastern segment of the A'nyemaqen suture zone. Both test and practical application prove that the multiscale SAGA is a good tool for seismic tomography.

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Last Update: 2008-03-23