多波段偏振成像仪设计及实验室定标

大气与环境光学学报 ›› 2019, Vol. 14 ›› Issue (4): 303-312.

多波段偏振成像仪设计及实验室定标

丁满超^1，2,翟文超²,张权²,庞伟伟²，李新²,郑小兵²

1 中国科学技术大学环境科学与光电技术学院, 安徽合肥 230026;
2 中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室安徽合肥 230031

收稿日期:2018-03-29 修回日期:2018-05-04 出版日期:2019-07-28 发布日期:2019-07-12

Laboratory Calibration of a Multi-Band Polarization Imager

Received:2018-03-29 Revised:2018-05-04 Published:2019-07-28 Online:2019-07-12

摘要/Abstract

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%, 670 nm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。

关键词: 偏振成像仪, 偏振定标, 敦煌辐射校正场, 像元配准

Abstract: 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.

Key words: polarization imager, polarization calibration, Dunhuang radiation calibration site;, pixel registration

丁满超翟文超张权庞伟伟李新郑小兵. 多波段偏振成像仪设计及实验室定标[J]. 大气与环境光学学报, 2019, 14(4): 303-312.

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