基于小波分析的磁测数据处理流程及解释方法  

THE MAGNETIC FIELD DATA PROCESSING AND INTERPRETATION METHODS BASED ON WAVELET ANALYSIS

作　　者：张恒磊[1] 刘天佑[1] 

机构地区：[1]中国地质大学地球物理与空间信息学院,湖北武汉430074

出　　处：《物探与化探》2009年第6期686-690,共5页Geophysical and Geochemical Exploration

基　　金：全国危机矿山接替资源找矿项目(200799084)资助

摘　　要：对某地区高精度磁测数据,为了有效分析地下场源的异常特征,作者采用小波分析方法对磁异常进行多尺度分析,获取不同深度层次的场源信息,结合平面、剖面资料的反演处理解释,利用2.5维模型反演建立了地下场源的地球物理模型。通过分析,认为小波多尺度分析可以更好的揭示深部场源的赋存信息,计算精度可靠,较传统的延拓、滤波等方法有更高的分辨率。In order to analyze characteristics of underground sources of the high accuracy magnetic data in an effective way, the authors employed wavelet transform to make a multi-scale analysis of the magnetic data. Based on the inversion and interpretation of the plane and profile data, this paper built a geophysical model for the working area by using the 2.5D inversion method. Tests show that the wavelet method can separate the information of different underground sources effectively and has reliable calculation accuracy and higher resolution than traditional extension and filtering methods.

关 键 词：磁法勘探 小波分析 二度半模型反演 匹配滤波 

分 类 号：P631.2[天文地球—地质矿产勘探]