地质与勘探2018，Vol.54Issue(2)：325-331,7.
起伏地形频率域可控源电磁二维快速正反演
Fast 2D Forward Modeling and Inversion of CSEM with Topography in the Frequency Domain
摘要
Abstract
Research on forward modeling and inversion algorithms for frequency domain CSEM with topography is receiving much attention. While the 2-D codes of them that are commonly used do not consider topography. In this paper,the integral equation method is used in forward modeling and the multiple-frequency contrast source is adopted in inversion,then both are incorporated into development of a fast solver for CSEM with topography.By using a layered medium reference model and integrating the topography and the targeted object into one calculation domain,it is possible to realize the aim afore-mentioned. The FFT algorithm is also used to accelerate the computation caused by expansion of the calculated domain. Numerical examples demonstrate that the fast forward and inverse solvers for 2-D CSEM with topography presented in this paper are feasible and effective.关键词
起伏地形/频率域可控源/体积分模拟/对比源/快速正反演Key words
topography/frequency domain CSEM/IE/CSI/fast forward and inverse solvers分类
天文与地球科学引用本文复制引用
李静和,何展翔,熊彬..起伏地形频率域可控源电磁二维快速正反演[J].地质与勘探,2018,54(2):325-331,7.基金项目
国家自然科学基金项目(编号:41604097)、国家博士后科学基金(编号:2016M592611)和桂林理工大学博士后科学基金联合资助. （编号:41604097）
