Characteristic difference analysis and transfer parameter determination for different satellites to detect NDVI values  

作　　者：LI Li GU XingFa YE ZeTian YU Tao MENG QingYan WANG YuXi 

机构地区：[1]State Key Laboratory of Remote Sensing Science,the Institute of Remote Sensing Applications of Chinese Academy of Sciences,Beijing 100101,China [2]Chinese Academy of Surveying and Mapping,Beijing 100039,China [3]Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

出　　处：《Science China Earth Sciences》2012年第5期816-823,共8页中国科学（地球科学英文版）

基　　金：supported by National Basic Research Program of China (Grant No. 2010CB950803);National Natural Science Foundation of China (Grant No. 40971227);projects funded by the Inter-governmental Scientific and Technological Cooperation in Hungary

摘　　要：Here we propose a new method of NDVI difference analysis and NDVI difference correction for multi-sensors to detect NDVI.This method integrate PROSPECT model,SAIL model and MODTRAN atmospheric radioactive transfer model to simulate the remote sensing signals of different satellites for both NDVI difference analysis and correction without using real satellite images.The effects of both the sensors' spectral responses and atmospheric condition are simulated,and the differences among NDVI values derived from thirty different satellites are analyzed quantitatively.Focusing on the conversions of NDVI values among different satellites,through linear regression analysis,we estimate the transfer parameters between any two different satellite NDVI values,and present the lookup tables of transfer parameters under the atmospheric conditions of three surface visibility range values (10,23 and 50 km).The proposed method is useful for NDVI applications and analyses for multi-sensors.Here we propose a new method of NDVI difference analysis and NDVI difference correction for multi-sensors to detect NDVI.This method integrate PROSPECT model,SAIL model and MODTRAN atmospheric radioactive transfer model to simulate the remote sensing signals of different satellites for both NDVI difference analysis and correction without using real satellite images.The effects of both the sensors＇ spectral responses and atmospheric condition are simulated,and the differences among NDVI values derived from thirty different satellites are analyzed quantitatively.Focusing on the conversions of NDVI values among different satellites,through linear regression analysis,we estimate the transfer parameters between any two different satellite NDVI values,and present the lookup tables of transfer parameters under the atmospheric conditions of three surface visibility range values （10,23 and 50 km）.The proposed method is useful for NDVI applications and analyses for multi-sensors.

关 键 词：NDVI-detecting remote sensing signal simulation spectral response difference analysis NDVI transfer parameter 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程] TP79[自动化与计算机技术—控制科学与工程]