摘要
提高卫星遥感数据的质量,进而实现定量化应用,其基本前提和关键在于传感器的绝对辐射定标.为检验Terra卫星MODIS(Moderate-Resolution Imaging Spectroradiometer)传感器的星上定标系数的准确性和可靠性,2007-05在北京遥感综合实验场网内蒙二连浩特实验场,采用反射率基辐射定标方法对MODIS可见-近红外波段开展定标与真实性检验.结果表明,场地定标系数和MODIS的星上系数非常吻合,相对差异小于6%,证明场地反射率基辐射定标方法定标和MODIS星上定标得到的定标系数均准确、可信度高.
Radiometric calibration is the key to improving quality and quantitative applications of the re- mote sensor data. A comprehensive calibration and validation experiment of M ODIS（ Moderate-Resolu- tion Imaging Spectroradiometer）visible and near-infrared bands was performed by National Spaceborne Demonstration at the ErLianhot test site in May 2007 in order to validate the veracity of MODIS onorbit calibration coefficients. The reflectance-based calibration method was used. It was found that the vicarious calibration results were in good agreement with the MODIS on-board calibration results with the deviation less than 6% at the ErLianhot test site. The results showed that the calibration results of both vicarious calibration and on-orbit calibration was highly reliable.
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2010年第1期109-113,共5页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
国家"863"无场地定标关键技术项目(2006AA12Z113)
