三维电磁响应积分方程法数值模拟

来源期刊：中南大学学报(自然科学版)1999年第5期

论文作者：鲍光淑 张碧星 敬荣中 毛先进

文章页码：472 - 474

关键词：三维电磁响应;张量格林函数;积分方程法;数值模拟

Key words：3-D EM response; tensor Green′s function; integral equation solution; numerical modeling

摘    要：从电磁基本理论出发，深入研究了均匀 导电半空间频域三维电磁散射问题，由张量格林函数求解Fredholm方程，将异常体划分为一系列立方单元，并将该积分方程转化为矩阵方程，从而计算出空 间任意点的电场和磁场；此外，还给出了计算实例，并与国外结果进行分析对比，证明作者运用的计算方法结果正确，算法快速．

Abstract: The frequency domain 3-D EM scattering problems in homogeneous half space are profoundly researched based on the basic theories of numerical modeling for the frequency and the time domain 3-D EM responses, and the Fredholm equation is solved using tensor Green′s function. The anomalous body in homogeneous half space is divided into a number of cubic cells and the integral equation is reduced to a matrix equation. Then we calculate the electric and magnetic fields at any point in the earth. An example is provided, and its result is compared with foreign works. All results prove that the procedure is correct and the calculating method is fast. This work will give impetus to the development of the 3-D EM numerical modeling techniques in our country.