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《Chinese Journal of Geophysics》 2013-12
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3D inversion for frequency-domain HEM data

LIU Yun-He;YIN Chang-Chun;College of Geo-exploration Sciences and Technology,Jilin University;  
In order to find an efficient inversion algorithm for 3Dhelicopter-borne electromagnetic(HEM)data interpretation,we present in this paper two popular nonlinear optimization algorithms-nonlinear conjugate gradients(NLCG)and limited-memory Broyden-Fletcher-Goldfarb-Shanno(L-BFGS) and compare their effectiveness and efficiency.For better recovering the depth of anomalous targets,large smoothing parameters in the model covariance matrix are employed at the beginning of inversion process.When the misfit decrement becomes very slow,small smoothing parameters are used to obtain focusing and accurate results.Numerical results show that these two methods have similar memory requirements,but L-BFGS method performs better than NLCG in terms of time-cost and the model resolution,making the L-BFGS method more suitable for large scale optimization problems.Further model experiments show that the current iterative algorithms may not suit for the inversion of large HEM datasets,technologies like the matrix factorization may be needed in the future for the fast modeling and inversion for airborne EM platform.
【Fund】: 国家自然科学基金项目(41274121);; 国家重大科研装备研究项目(ZDYZ2012-1-03);; 国家“863”计划重大项目(2012AA09A20103);; 国家重大科技仪器专项项目(2011YQ05006010);; 中国博士后科学基金项目(2012M520672)资助
【CateGory Index】: P631.325
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Chinese Journal Full-text Database 3 Hits
1 Han Bo1,Hu Xiangyun1,He Zhan-xiang2 and Cai Jianchao1.1.Institute of Geophysics and Geomatics,China University of Geosciences(Wuhan),Wuhan,Hubei 430074,China 2.GME and Geochemical Survey Department,BGP Inc.,CNPC,Zhuozhou,Hebei 072751,China;Mathematical classification of magnetotelluric inversion methods[J];Oil Geophysical Prospecting;2012-01
2 YANG Xi,PAN He-ping(Institute of Geophysics & Geomatics,China University of Geosciences,Wuhan 430074,China);A REVIEW OF THE NUMERICAL SIMULATION AND IMAGING TECHNOLOGY FOR CROSSHOLE ELECTROMAGNETIC WAVE[J];Geophysical and Geochemical Exploration;2009-02
3 LIN Chang-hong1,2,TAN Han-dong1,2,TONG Tuo1,2(1.School of Geophysics and Information Technology,China University of Geosciences,Beijing 100083,China 2.Key Laboratory of Geo-detection(China University of Geosciences),Ministry of Education,Beijing 100083,China);3D Interpretation of Magnetotelluric Sparse Survey Lines Data and Dense 3D Grid Data[J];Geoscience;2012-06
China Proceedings of conference Full-text Database 1 Hits
1 TANG Jing-tian, REN Zheng-yong, HUA Xi-rui(School of Info-physics and Geomatics Engineering, Changsha, 410083);The forward modeling and inversion in geophysical electromagnetic field[A];[C];2007
【Secondary Citations】
Chinese Journal Full-text Database 4 Hits
1 Hu Wenbao;Su Zhuliu ;Chen Qingli;Yan Liangjun; Zheng Renshu; Yi Mingli; YangLing;Xiong Shizhong and Liu Liu Hong (Department of Information engineering.jianghan Petroleum College,jingsha City,hubei Province, 434102);Character of tipper data and the application[J];OIL GEOPHYSICAL PROSPECTING;1997-02
2 Wu Xiaoping and Xu Guoming(Departmentof Earth & Space Science,china University of Science and Technology,Hefei City,Anhui Province,230026);Derivation and analysis of partial derivative matrix in resistivity 3-D inversion[J];OIL GEOPHYSICAL PROSPECTING;1999-04
3 Tan Han dong,Wei Wen bo,Deng Ming and Jin Sheng. Tan Han dong.Collage of Geophysics and Information Technique,China University of Geology,Beijing City,100083,China;General use formula in MT tensor impedance.[J];Oil Geophysical Prospecting;2004-01
4 YU Peng,WU Jiansheng,WANG Jialin,ZHANG Xinbing(State Key Laboratory of Marine Geology,Tongji University,Shanghai 200092,China);Long Period Magnetotelluric Data-Based Study on Deep Fault Structure in Shanghai and Zhejiang Area[J];Journal of Tongji University(Natural Science);2008-04
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