摘要
金矿遥感探测之关键在于成矿构造及铁氧化物、含羟基蚀变矿物的信息提取。ＪＥＲＳ—１ＳＡＲ在构造探测方面具有很大的优势，可通过噪斑消除及边缘增强的空间滤波来提取构造信息。ＬａｎｄｓａｔＴＭ可通过主成分变换，比值分析－主成分变换来提取蚀变矿物波谱信息、抑制植被波谱干扰。这两种遥感数据的复合处理可综合蚀变与构造信息。
The key point for gold exploration using remote sensing technology is the information extraction of ore-forming structures and the spectral character of the ferroxides and alterated hydrous dinerals. JERS-1 SAR is of great potential in structural extraction, which can be achieved by suppressing the speckled noise and edge enhancement using spatial filters. With the help of principal component analysis of the band or ratio imagery of the landsat TM, the spectral character of alterated minerals can be extracted, while the influnce of the vegetation can be suppressed. Both alteration and structural information can be extracted by the integration of the two above remote sensing data.
出处
《环境遥感》
CSCD
1996年第4期260-266,T001,共8页
关键词
金矿床
探测
遥感数据
信息提取
JERS- 1 SAR
Landsat TM
Image integration
Information extraction
