ASTER数据蚀变矿物信息提取技术研究及其应用综述  

Research and Application of ASTER Data Alteration Minerals Information Extraction Technology

作　　者：靳娟[1,2] 杨日红[2,3] 李家存[1] 

机构地区：[1]首都师范大学资源环境与旅游学院,北京100048 [2]国土资源部航空物探物理与遥感地质重点实验室,北京100083 [3]中国国土资源航空物探遥感中心,北京100083

出　　处：《国土资源科技管理》2013年第4期62-69,共8页Scientific and Technological Management of Land and Resources

基　　金：国家863计划重大项目(2012AA12A308)

摘　　要：由于ASTER卫星数据具有6个短波红外(SWIR)波段,对粘土矿物和碳酸盐化类矿物具有一定的识别能力,在岩浆热液作用密切相关的铜、金等多金属矿找矿中得到了广泛应用。总结了常见蚀变矿物波谱曲线特征,特别是其吸收谷和反射峰对应ASTER卫星数据波段的特征,同时对比分析了常用的基于ASTER数据开展蚀变矿物信息提取的主成分分析法、光谱角法和比值分析法,分析其各自的优缺点及其主要适用区域,并简要介绍了2个典型蚀变矿物组合信息提取的实例。认为ASTER数据蚀变矿物信息提取方法的选择应结合研究区具体情况而定,即根据研究区地理地貌、植被覆盖度、蚀变类型及其蚀变矿物特征选择最优的蚀变矿物信息提取方法。With six shortwave infrared （SWIR） bands, ASTER satellite data can identify clay minerals and carbonate minerals and are widely used in the prospecting of copper, gold and other metal ores which are closely related to magma hydrothermal. This paper summarizes the features of common altered mineral spectrum curve, especially the features of its absorption valley and reflection peaks corresponding to ASTER satellite data band. Meanwhile, the paper does a comparative analysis of the methods used to get alteration mineral information extraction based on ASTER data, including principal component analysis method, spectral angle method and ratio analysis method, discusses the advantages and disadvantages and the main application scope of the methods, and briefly introduces two typical examples of alteration portfolio information extraction. It is concluded that the selection of information extraction methods of ASTER data alteration mineral should rely on specific circumstances of the research area, or select the optimal method based on geographical landforms, vegetation coverage, alteration type and its alteration mineral features.

关 键 词：ASTER数据 蚀变矿物信息 主成分分析法 光谱角法 比值分析法 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]