变形玻恩迭代法用于非均匀分布地层电导率的重建  

Reconstruction of Inhomogeneous Formation Conductivity Using Distorted Born Iterative Method

作　　者：张业荣[1] 漆兰芬[1] 聂在平[2] 阮颖铮[2] 

机构地区：[1]华中理工大学电子与信息工程系,武汉430074 [2]电子科技大学微波工程系,成都610054

出　　处：《电子器件》1997年第1期204-208,共5页Chinese Journal of Electron Devices

摘　　要：借助于破恩近似将TE波的非线控积分方程线性化,由井轴上测量到的低频近场测量数据,利用变形玻恩迭代方法对二维非均匀地层电导率进行重建和反演.用吉洪诺夫正则化方法处理重建中出现的病态矩阵方程.The nonlinear integral equation is first linearized by using Born approximation and then the low-frequency TE measurements on the symmetry axis are used to reconstruct and image the two-dimensional inhomogeneous media by using the Born iterative method and the distorted Born iterative method. The ill-conditioned matrix equation is resolved by using Tikhonov's regulari- zation method.

关 键 词：玻恩近似 迭代 地球物理测井 地层电导率 

分 类 号：P631.8[天文地球—地质矿产勘探]