陆地卫星 meaning in English
landsat
Examples
- The landsats alone have given us more than a million images of earth .
单是陆地卫星就为我们提供了超过一百万张的地球图象。 - Based on landsat thematic mapper ( tm ) image , the distribution , formation and movement of desert were studied in the region of jilantai salt lake , the primary sites of the defence and control were analyzed
利用陆地卫星tm标准假彩色合成影像图，研究了吉兰泰盐湖地区沙漠的分布、形成和运移规律；探讨了进行吉兰泰盐湖治沙、防沙的重点地段。 - Dealing with remote sensing data of different time ( 1987 , 1996 landsat tm , and 2000 china - brazil earth resource satellite ccd ) and using the gis technology , the dissertation extracts the changing information of the desertification . the dissertation makes a dynamic remote sensing analysis on the desertification of the research region , and discusses the temporal and spatial evolving law of the desertification
在技术上主要采用了1987 、 1996年的陆地卫星tm数据以及2000年中巴资源卫星1号ccd数据三个不同时相的遥感数据进行图像处理，并利用gis较强的空间分析功能，从中提取研究区土地沙漠化的变化信息，同时与研究区的其他信息数据进行叠加分析，探讨了研究区土地沙漠化的时空演化特点。 - The author applies gis and rs technology to the study on the wetland along the yellow river in henan province in order to make it scientific management , effective protection and sustainable exploitage . based on the landsat5 tm and landsat7 etm imagine and the characteristics of the study area , the interpretation symbols are established and the maps of the wetland resources in 1987 and 2002 are made
论文以豫境沿黄湿地1987年和2002年陆地卫星多波段遥感影像为主要研究资料，地面gps调查结合豫境沿黄湿地的区域特点，在遥感和地理信息系统技术的支持下，建立湿地分类系统和解译标志，对豫境沿黄湿地资源进行类型划分和面积调查。 - Investigation using remote sensing ( rs ) technology can breakthrough the limits of traditional methods , make full use of its capability of integration , visualization , rapidity and vast - dimensions analysis , and get better results the paper takes the up - to - date landsat - 7 etm + data , which is the most widely used , and quickbird data , which has the highest resolution nowadays , and according the features of the data and landslides , processes the quickbird data with 1 : 10 000 dem orthophoto correction and the landsat - 7 etm + data as follows : ( 1 ) selecting optimal spectrum band : selects 753 bands as the optimal bands ; ( 2 ) image intensifying : selects the principle components processing method on the basis of comparing several image intensifying methods ; ( 3 ) rigour geometric direction : corrects the geometric distortion of the map ; ( 4 ) image fusion : mainly takes his space transform fusion and resolution fusion method , and acquires maps with higher spectrum resolution as well as space resolution . after that , the visual effect of the image has been enhanced , and the interpretation precision
采用遥感技术，可以突破传统调查方法的限制，发挥其宏观、综合、直观、快速的特点，取得更好的效果。论文选取目前应用最广的陆地卫星最新系列landsat - 7etm +数据和空间分辨率最高的商业卫星quickbird数据作为主要的数据源，根据数据的特点及滑坡灾害应用特征，对quickbird遥感数据则基于1 ： 10000dem进行了正射校正，对etm +遥感数据进行了波段优选，选取了753作为最佳组合波段；图像增强，通过各种增强处理方法的效果对比，选择主成分分析法对图像进行增强；几何精校正，纠正图像的几何变形；影像融合，主要选取了效果较好的his空间变换融合和分辨率融合，得到的图像既具有较高的光谱分辨率，同时也具有较高的空间分辨率。经过上述数字处理，较好地改善了图像的视觉效果，提高了图像解译的精度。