高光谱技术在汝箕沟煤田烧变岩和Fe^(3+)丰度信息提取中的方法研究  

THE EXTRACTION OF MINERAL INFORMATION FROM HYPERSPECTRAL REMOTE SENSING IMAGE

作　　者：万余庆[1] 闫永忠[1] 

机构地区：[1]中煤航测遥感局遥感应用研究院,西安710054

出　　处：《国土资源遥感》2003年第2期50-54,共5页Remote Sensing for Land & Resources

摘　　要：介绍了宁夏汝箕沟煤田煤系地层和烧变岩的反射光谱特征。通过采样分析烧变岩的铁含量,借助多元回归分析,确定了烧变岩中Fe3+含量与某些波段反射率的定量关系,提出了利用高光谱遥感图像提取Fe3+的方法。文中以汝箕沟煤田大岭湾火区、阴坡火区为试点,证明了该方法是有效的。该成果再次证明了高光谱遥感技术在矿产资源调查和定量分析中的有效性。Based on an analysis of the reflectance of burnt rocks in the Rujigou coalfield of Ningxia, this paper points out the key factors affecting the reflectance. With regression analysis, a simulation formula was established, which indicated the quantitative relationship between Fe3+ and reflectivity at certain wavelengths. Then the author took the hyperspectral image of the coalfield as an example to find whether the formula is effective or not in calculating Fe3+ content of burned rocks. The result is satisfactory in that it coincides with the field investigation. It also proves the practicability of the hyperspectral remote sensing technique in mineral resource exploration.

关 键 词：高光谱遥感 煤层烧变岩 Fe^3+定量分析 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]