基于频点CSAMT一维最小构造反演

摘要

The methods of traditional linear inversion of CSAMT are with more dependence on the initial models, and the thin layer which'is with low resistance always can not be reflected well by these methods. In this paper, some smoothness constraints conditions were added in the objective function of the least squares inversion, which was called the Minimum structure inversion. In addition, we used the number of the frequency and the surface resistivity to get the thickness of every layer in order to construct the initial model which make the initial model of the CSAMT inversion more flexible, simple and reasonable, and more easily to be applied in the actual data processing.%传统CSAMT线性反演方法,往往存在对初始模型依赖性强和对某些低阻薄层反映不灵敏的弱点,这里在CSAMT最小二乘反演的基础上,在目标函数加入光滑约束条件,构成最小构造反演.另外,根据频点个数和地表电阻率来构建初始模型,使反演的初始模型更加灵活、简单、合理、更易应用于实际数据处理中.