By the experiments for two-layer and three-layer homogeneous media, this method is verified to be highly precise and effective comparing with FEM method and the previous NMM method.
The improved NMM method, avoiding complicated matrix inverse, is easy to understand and has concise physical meaning.
这一方法避免了原NMM中复杂的求逆运算,思路简单,其物理意义也更明确。
Convergence rates are also studied with examples and they are approximately equal in the NMM and the conventional FEM analyses for both material cases.
利用算例分析了用这种方法计算的两套覆盖函数的收敛率。
We prove that the application of NMM in cross-well electromagnetic imaging logging system for the fast forward calculation has big development potential and great use prospect.