利用Cole-Cole模型组合得到SIP真参数的联合频谱最优化反演  

JOINT SPECTRAL OPTIMIZATION INVERSION USING COMBINATION OF COLE-COLE MODELS FOR SIP REAL PARAMETERS

作　　者：张辉[1] 李桐林[1] 

机构地区：[1]吉林大学地球探测科学与技术学院,吉林长春130026

出　　处：《西北地震学报》2004年第2期108-112,共5页Northwestern Seismological Journal

基　　金：国土资源部重点科技项目(20010212)

摘　　要：利用Cole-Cole模型组合和稀释系数理论,可以描述测量得到的视复电阻率频谱与地下多个电性体SIP真参数之间的正演关系。本文利用此正演关系进行反演试算,并比较了几种Cole-Cole模型反演方案的效果;提出固定极化目标体和围岩体的极化率同时反演其它各SIP真参数的反演方案。结果表明在固定极化率为真值时,利用此反演方案可以稳定、准确、快速地得出地下电性体SIP真参数。The relations between SIP real parameters of underground anomalous body and apparent complex resistivity spectra can be expressed by the combination of Cole-Cole models and dilute coefficient. In this paper, we use the modeling expression to compare several SIP inversion schemes with Cole-Cole model, and bring forward a new inversion scheme, it is fixing the polarizability of polarizable object body and adjacent rock, then simultaneity inverse other SIP parameters. Through a great deal theoretic checking computations, we find when polarizability is fixed, this inversion scheme has good stability, veracity and velocity.

关 键 词：Cole-Cole模型组合 最优化联合反演 稀释系数 SIP真参数 

分 类 号：P631.3[天文地球—地质矿产勘探]