关键词: 地电阻率, 层析成像, 非线性反演, 图像重建

Abstract: Resistivity tomography(RT) is a technique determining the resistivity distribution within the studied area based on the measurements of potential and current values on the boundaries. It is essentially different from the acoustic and electromagnetic tomography. In this paper,the mathematical principle of RT is presented,then a few main reconstruction methods are systematically analyzed and concluded according to the integral transform,linear iterative and nonlinear iterative methods. For calculating the Jacobian partial derivative matrix,three methods are briefly discussed. Two field’s tomograms in the surface and crosswell exploration are provided as well. The feature and limits of RT are finally discussed in brief.

Key words: Ground resistivity, Tomography, Nonlinear inversion, Image reconstruction