%0 Journal Article
%T Pseudo-Three-Dimensional magnetotelluric inversion using nonlinear conjugate gradients<br>大地电磁非线性共轭梯度拟三维反演
%A HU Zu-Zhi
%A HU Xiang-Yun
%A HE Zhan-Xiang
%A <br>胡祖志
%A 胡祥云
%A 何展翔
%J 地球物理学报
%D 2006
%I 
%X We propose nonlinear conjugate gradient pseudo-3-D method was selected as the inversion kernel. When calculating MT inversion algorithm. The conjugate gradient sensitivities matrix, instead of computing 3-D sensitivities, we attempt to compute 1-D sensitivities. Since the sensitivity elements of non-stations are zero, which should be non-negligible values, we adopt a method of approximation. We update sensitivities matrix by the quasi-Newton method after the first inversion. Psudeo-3-D MT inversion can save computational time greatly. Inversion results of a synthetic data set and real data set show that the psudeo-3-D MT inversion has some practical applications.
%K Magnetotellurie
%K Pseudo-three-dimensional
%K Sensitivity
%K Nonlinear conjugate gradient
%K Quasi-Newton method<br>大地电磁
%K 拟三维
%K 灵敏度
%K 非线性共轭梯度
%K 拟牛顿法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=14DC41C59CBF6770055A7D610D53AE46&aid=8A543AEDB26083EF&yid=37904DC365DD7266&vid=2A3781E88AB1776F&iid=E158A972A605785F&sid=7DA67D178F3C9099&eid=302799463F713260&journal_id=0001-5733&journal_name=地球物理学报&referenced_num=16&reference_num=43