陆地卫星影像用于土地利用覆被变化中的波段组合研究

Research in choose best band of landsat images used in land use and land cover change

在遥感图像处理软件(earth resource data analysis system,ERDAS)的支持下,以香日德绿洲为研究区,综合运用该软件提供的多种方法,分别计算了相关统计信息.利用相关系数矩阵、特征向量和特征值,按照最佳波段组合原则,得到了该区用于土地利用与覆被(land use and land coverchange,LUCC)的波段组合为TM247(专题制图仪,thematic mapper,TM).TM145为提取居民点和水域的最佳组合,TM345为提取耕地、林地、草地的最佳组合.该方法及其思想不仅可用于确定陆地卫星影像中的最佳波段组合,而且可用于确定其他专题最佳波段组合中.

With the remote sensing image processing software ERDAS support, take Xiangride oasis as example, integrated use of various methods provided by the software, and calculate the relevant statistical information respectively, results show that use correlation matrix, eigen vectors and eigen value, according to the principles of best band combination for land use and land cover change, gained TM247 is best for urban interpret, TM145 is best for abstract residential area and water area, and TM345 is the best combination for abstract plantation, woodland and pasture; The method and idea can not only use in determine best band combination of landsat images for the land use and land cover change but also can use in other topics for the best band combinations.