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。 The traditional CSAMT linear inversion method often has the weakness of being sensitive to the initial model and insensitive to some low resistivity thin layers. Based on the CSAMT least squares inversion, the smoothing constraints are added to the objective function to form Minimal structural inversion. In addition, the initial model is constructed according to the number of frequency points and the surface resistivity, so that the initial model of inversion can be more flexible, simple and reasonable and can be easily applied to actual data processing.