瞬变电磁法正反演问题研究进展  

Research progress in TEM forward modeling and inversion calculation

作　　者：薛国强[1] 李貅[2] 底青云[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]长安大学地质工程与测绘工程学院,西安710054

出　　处：《地球物理学进展》2008年第4期1165-1172,共8页Progress in Geophysics

基　　金：国家自然科学基金重点项目(50539080);国家自然科学基金项目(40774066)联合资助

摘　　要：对瞬变电磁法的方法发展概况和仪器研制状况做出了综述性评价.对瞬变电磁法正反演问题的研究成果进行了系统总结.目前的数值模拟正演方法主要有一维滤波系数法,三维积分方程法,二维,三维有限差分法,2.5维有限元法等,主要的反演方法有:一维浮动薄板解释法,人机对话自动反演法,烟圈理论解释法,神经网络反演法,成像类反演等,论述了瞬变电磁法各种计算方法的特点.瞬变电磁法的正反演发展趋势主要是研究三维正反演的计算方法和目标体成像系统.We give a general review of recent research progress about the Transient Electromagnetic Method （TEM） and instrument . The achievement of TEM forward modeling and inversion have been summarized . At present, the forward numerical calculation methods include 1D digital filter method, 3D integral equation method, 2D and 3D difference method,2. 5D infinite element method. The main 1D inverse methods include floal plate melhod, auto-lnverse method, smoking theory,artificial neural network,imaging inversion. We present the feature of every numerical calcu- lation method. The developing direction of forward and inverse studies mainly is the 3D calculation method and the target imaging sysytem.

关 键 词：瞬变电磁法 正演问题 反演问题 

分 类 号：P631[天文地球—地质矿产勘探]