%0 Journal Article
%T ALGORITHM STUDY ON SOIL MID-INFRARED EMISSIVITY EXTRACTION<br>土壤中红外发射率提取算法研究
%A CHENG Jie
%A LIU Qin-Huo
%A LI Xiao-Wen
%A XIAO Qing
%A DU Yong-Ming
%A <br>程洁
%A 柳钦火
%A 李小文
%A 肖青
%A 杜永明
%J 红外与毫米波学报
%D 2008
%I Science Press
%X Based on the four step method, a method for deriving soil mid-infrared emissivity was put forward. The first step, soil temperature was inversed by the ISSTES algorithm from thermal infrared data; The second step, the soil temperature was introduced to make the inversion equation complete in mid-infrared domain ; The third step, the least square meth- od was applied to solve the formulations and then the mid-infrared emissivity was obtained. More attention was paid to analyze the impacts of instrument calibration error and simplification of radiative transfer equation on the extraction of soil emissivity in mid-infrared. Finally, the reason for large error of emissivity inversion in some bands of mid-infrared was pointed out based on the simulated data.
%K remote sensing
%K temperature
%K emissivity
%K temperature emissivity separation
%K ISSTES
%K calibration<br>遥感
%K 温度
%K 发射率
%K 温度发射率分离
%K ISSTES
%K 定标
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=BC8761AD2097F792137194D58D11FE6C&yid=67289AFF6305E306&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=659D3B06EBF534A7&eid=7BDD277635B70179&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=11