%0 Journal Article
%T A 3-D FINITE-ELEMENT RESISTIVITY FORWARD MODELING USING CONJUGATE GRADIENT ALGORITHM<br>利用共轭梯度算法的电阻率三维有限元正演
%A WU XIAOPING
%A <br>吴小平
%J 地球物理学报
%D 2003
%I 
%X In this study, symmetric successive overrelaxation preconditioned conjugate gradient (SSOR-PCG) algorithm is used to solve large linear system derived from 3-D finite-element resistivity forward modeling. Using row-indexed sparse storage mode to store coefficient matrix, the algorithm converges much quickly and requires much less storage of computer. It is very convenient to be applied to the solution of the secondary potential, achieving much higher accuracy while the calculation is keeping fast.
%K 3-D resistivity forward modeling
%K Finite-element
%K Secondary potential
%K Symmetric successive overrelaxation
%K Conjugate gradient<br>共轭梯度算法
%K 电阻率三维有限元正演
%K 异常电位
%K 对称超松弛
%K 迭代算法
%K 地球物理勘探
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=0769497E47F27653&yid=D43C4A19B2EE3C0A&vid=D997634CFE9B6321&iid=38B194292C032A66&sid=B7ACE2F11789CAE0&eid=4BEA9A781F286FC6&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=20&reference_num=11