位场正则化下延在自然电位概率成像中的应用  

APPLICATION OF POTENTIAL FIELD NORMALIZED DOWNWARD EXTRAPOLATION IN SP PROBABILITY TOMOGRAPHY

作　　者：阮帅[1] 王绪本[1] 高永才[1] 毛利峰[1] 

机构地区：[1]成都理工大学信息工程学院,四川成都610059

出　　处：《物探化探计算技术》2006年第4期332-336,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然科学基金项目(40074036)

摘　　要：通过位场正则化向下延拓方法,弥补自然电位法对于地下全空间信息反映不足的客观缺陷,改进仅通过地表数据成像而导致的深度不灵敏状况。在模型分析中,新方案的成像结果和真实模型非常吻合。对于实测资料解释,新方案的处理结果在横向上符合实测数据的异常反映,同时还能够准确的给出地下半空间的纵向信息。Based on the normalized downward extrapolation theory,we have improved vertical precision of traditional surface self-potential(SP) tomography method,of which processing only uses the surface observed voltages.After that,external limitations that cause the shortages in representing the whole underground information can be voluminously avoided.During model analysis,the new tomography scheme can provide more exact results to fit the true original model.Towards the practical data explanations,it accurately gives both horizontal abnormity corresponding with practical survey and vertical information of whole underground space.

关 键 词：自然电位 概率成像 正则化下延 

分 类 号：P631.321[天文地球—地质矿产勘探]