河南理工大学学报：自然科学版2011，Vol.30Issue(5)：561-566,6.
Lansat-7ETM＋热红外波段高低增益状态数据反演亮度温度比较研究
Comparison of brightness temperatures inversed from high and low gain state data of Lansat -7 ETM ＋ thermal infrared band
摘要
Abstract
In order to compare surface brightness temperature difference inversion from high gain state data （6H） and low gain state data （6L） of Lansat-7 ETM ＋ thermal infrared band, the radiation characteristics and some parameters such as useful temperature range of the thermal infrared band are firstly introduced, and brightness temperatures of the 6H and 6L from a scene of Lansat - 7 ETM ＋ images are calculated, as well as a temperature difference image by subtraction 6Lg brightness temperatures from 6Hg. Then the spatial structure and statistical characteristics of above two surface brightness temperature images and the difference image between them are analyzed. Only slight difference lie between brightness temperature of the 6H and the 6L, and the larger difference lies at high temperature. The distribution of the positive and negative values of difference has no significant relationship with the value of temperature and the surface category. It is with slightly high sensitivity to inverse brightness temperature by 6H than by 6L, and with more wide temperature range to inverse by 6L than by 6H.关键词
陆地卫星-7/ETM＋/热红外波段/高低增益数据/亮度温度Key words
Landsat- 7 ETM ＋/thermal infrared band/high and low gain state data/brightness temperature分类
信息技术与安全科学引用本文复制引用
刘春国,卢晓峰,高松峰..Lansat-7ETM＋热红外波段高低增益状态数据反演亮度温度比较研究[J].河南理工大学学报：自然科学版,2011,30(5):561-566,6.基金项目
河南理工大学博士基金资助项目 （）
河南省教育厅自然科学研究计划项目（2010A420004）. （）
