Uncertainty analysis of cross-calibration for HJ-1 CCD camera

被引：0
作者：
Zuo Wang
PengFeng Xiao
XingFa Gu
XueZhi Feng
XiaoYing Li
HaiLiang Gao
Hui Li
JinTang Lin
XueLiang Zhang
机构：
[1] Nanjing University,Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology
[2] Nanjing University,Department of Geographic Information Science
[3] Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University,State Key Laboratory of Remote Sensing Science
[4] Xiamen University of Technology,Department of Spatial Information Science and Engineering
[5] Minjiang University,Department of Geography Science
来源：
Science China Technological Sciences | 2013年 / 56卷
关键词：
cross-calibration; uncertainty analysis; CCD camera; HJ-1;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Radiometric calibration of sensor is the basis of quantitative remote sensing, and uncertainty analysis is critical to ensure the accuracy of cross-calibration. Therefore, firstly, cross-calibration formulas were improved by redefining calibration coefficient and spectral band matching factor. In these formulas, cci was redefined as the calibration coefficient of normalized apparent reflectance, and spectral band matching factor as the ratio of normalized apparent reflectance. Secondly, based on the contrast of ideal and actual conditions in cross-calibration, 8 sources of cross-calibration uncertainty were proposed: calibration uncertainty of standard sensor; pixel matching uncertainty; spectral band matching factor uncertainty caused by site altitude setting error, atmospheric parameters setting error, surface spectrum source, surface bidirectional reflectance characteristic, and error of atmospheric radiative transfer model; and uncertainty caused by other factors which were not considered. Finally, the contribution of each uncertainty was further analyzed and discussed for the HJ-1 CCD camera. The results provide many valuable references for evaluating the feasibility of alternative cross-calibration measurements.
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页码：713 / 723
页数：10
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