摘要
介绍一种多波段偏振成像仪的集成设计及实验室偏振定标方案。通过可调偏振度光源验证仪器偏振定标精度,在10°视场内,当光源偏振度低于0.6时,仪器490 nm通道偏振度测量相对误差优于1.6%,670nm通道偏振度测量相对误差优于1.7%。设计了多波段偏振成像仪的系统软件,详细介绍了各个功能模块及自动化观测算法,通过敦煌辐射校正场外场试验,验证了仪器野外运行的稳定性以及系统软件设计的合理性与实用性.
The integrated design and laboratory calibration method of a multi-band polarization imager were presented.The polarization calibration accuracy was validated by a polarized light source whose degrees of polarization(DOP)is adjustable.The results showed that the relative DOP errors of 490 nm and 670 nm band are less than 1.6%and 1.7%,respectively,when the DOP of the polarized light source is less than 0.6.The software system of the multi-band polarization imager was designed as well,and the function modules and automatic observation algorithm of the software were described in detail.Finally,the field operation stability of the instrument as well as the function and practicability of software design were verified by its field depolyment in Dunhuang radiation calibration site,Gansu,China.
作者
丁满超
翟文超
张权
庞伟伟
李新
郑小兵
DING Manchao;ZHAI Wenchao;ZHANG Quan;PANG Weiwei;LI Xin;ZHENG Xiaobing(Institute of Environment Science and Photoelectric Technology,University of Science and Technology of China,Hefei 230026,China; Key Laboratory of Optical Calibration and Characterization,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China)
出处
《大气与环境光学学报》
CAS
CSCD
2019年第4期303-312,共10页
Journal of Atmospheric and Environmental Optics
基金
国家自然科学基金,61505222
中国科学院安徽光学精密机械研究所所长基金,AGHH201503~~
关键词
偏振成像仪
偏振定标
敦煌辐射校正场
像元配准
polarization imager
polarization calibration
Dunhuang radiation calibration site
pixel registration
