基于边界积分方程的2维电阻率层析成像

提出了一种新的二维电阻率层析成像方案。与国内外已有成像方法相比，该方法无需计算雅可比矩阵，不必要作线性化近似，这不仅节省了计算时间，而且使成像迭代过程，稳定，可以对实际上广泛存在的大一对比度介质获得满意的成像效果，因而大大提高了电阻率层析成像技术的这用性。中给出的数值模拟结果显示了该方法的有效性。

2-D RESISTIVITY TOMOGRAPHY BASED ON BOUNDARY INTEGRAL EQUATION

A kind of new method for 2-d Resistivity Tomography(RT)has been put forward in this paper.It is different from the RT methods which based on the finite element method and alpha centers method.Our method is unnecessary to compute the Jcobi Matrix and to do linear approximation.It can not only save computing time,but also make the inverse iteration stable and do well for RT when the electrical contrast of subsurface is big.So it clearly improves the practicality of RT.The numerical modeling results given in this paper show that our method is effective.