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由于计算能力的快速增加.目前已可以用数值模拟法反演三维构造的电阻率数据。以适于正演计算的有限元解法为基础,提出了完备三维反演法及近似三维反演法。这两种方法利用了视电阻率相对于模型电阻率的偏导数有效估值具有互换性这一原理。应用近似法时偏导数可用均匀半空间的偏导数近似表示,
Due to the rapid increase of computational power, it is now possible to invert the resistivity data of three-dimensional structure by numerical simulation. Based on the finite element method which is suitable for forward calculation, a complete three-dimensional inversion method and approximate three-dimensional inversion method are proposed. Both of these methods take advantage of the principle that the effective estimates of apparent resistivities relative to model partial resistivities are interchangeable. Applying the approximate method partial derivatives can be approximated by a partial derivative of a uniform half-space,