基于GIS软件平台的航磁弱信息提取研究  

Research on extraction of aeromagnetic weak information based on GIS

作　　者：韩绍阳[1] 侯惠群[2] 柯丹[1] 张鹏[1] 

机构地区：[1]核工业北京地质研究院,北京100029 [2]中国核经济与信息研究院,北京100037

出　　处：《铀矿地质》2003年第6期360-365,共6页Uranium Geology

摘　　要：本文介绍了航磁弱信息提取的内涵 ,探讨了航磁弱信息提取理论 ,阐述了选用的数学物理方法原理。基于GIS软件平台 ,提出了一种有利于弱信息显示的数据可视化方法———“1/ 4方差”法。在东胜地区完成了弱信息提取方法的有效性试验 ,结果表明航磁弱异常增强方法可有效地压制干扰噪声 ,提高信噪比 。This paper introduces the meaning of weak info rm ation extraction and discusses the theoretic foundation of aeromagnetic weak inf ormation extraction and expounds the principle of selected mathematic-physics m e thods.A kind of data visualization method--'1/4 standard deviation',which i s favorable for displaying weak information,is proposed in the GIS software plat form.The validity test of weak information extraction has been completed based on the GIS platform in Dongsheng area.Results indicate that the weak anomal y enhancement technique may effectively restrain the interfering noise,improve t he signal-to-noise ratio and further delineate the prospective targets of sand stone uranium deposits.

关 键 词：砂岩型铀矿 数据可视化 航磁弱信息提取 

分 类 号：P631.222[天文地球—地质矿产勘探]