Effect of divergence angle of polarization calibration source on DPC polarization calibration: Analysis and validation

Qing KANG; Yinlin YUAN; Jianjun LI; Wenchao ZHAI; Haoyu WU; jin HONG; Xiaobing ZHENG

doi:10.11834/jrs.20187051

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Effect of divergence angle of polarization calibration source on DPC polarization calibration: Analysis and validation
Vol. 22, Issue 2, Pages: 203-210(2018)
Published： 2018-3 ，

Accepted： 29 September 2017
DOI： 10.11834/jrs.20187051

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康晴, 袁银麟, 李健军, 翟文超, 吴浩宇, 洪津, 郑小兵. 2018. 光源发散角对DPC偏振定标的影响分析及验证. 遥感学报, 22(2): 203–210

Kang Q, Yuan Y L, Li J J, Zhai W C, Wu H Y, Hong J and Zheng X B. 2018. Effect of divergence angle of polarization calibration source on DPC polarization calibration: Analysis and validation. Journal of Remote Sensing, 22(2): 203–210
康晴, 袁银麟, 李健军, 翟文超, 吴浩宇, 洪津, 郑小兵. 2018. 光源发散角对DPC偏振定标的影响分析及验证. 遥感学报, 22(2): 203–210 DOI： 10.11834/jrs.20187051.

Kang Q, Yuan Y L, Li J J, Zhai W C, Wu H Y, Hong J and Zheng X B. 2018. Effect of divergence angle of polarization calibration source on DPC polarization calibration: Analysis and validation. Journal of Remote Sensing, 22(2): 203–210 DOI： 10.11834/jrs.20187051.

摘要

多角度偏振成像仪(DPC)是一种多角度、多光谱具备偏振测量功能的大视场偏振遥感器。偏振定标光源的发散角与DPC像元对应的视场角匹配一致，是提升DPC实验室偏振定标精度的关键因素之一。通过比较实验室偏振定标与在轨定标的状态差异，参考DPC在轨运行光学系统的成像原理，通过微分运算方式，建立一种偏振定标光源的发散角与单像元视场角匹配的模型，分析结果给出了光源的发散角应大于0.14°才能满足DPC全视场的偏振定标要求。以490 nm偏振通道为例，设计了采用可调光谱积分球替代0.125°发散角扩束镜平行光源方案，验证所建立模型和分析结果的合理性。结果表明，DPC的线偏振度测量值和理论预测值间的平均差异由1.26×10

–2

减小至4.4×10

–3

，说明所建立模型和采用可调光谱积分球作为偏振定标光源方案可用于DPC的实验室偏振定标。

Abstract

A Directional Polarization Camera (DPC) is a multi-angle multi-spectral wide-field polarization remote sensor that performs polarization measurement. Matching the divergence angle of the calibration light source with the corresponding field angle of the DPC pixel is important in achieving high-precision laboratory polarimetric calibration. A model of matching the divergence angle of the calibration light source with the corresponding field angle of the DPC pixel is established by comparing the state difference between on-orbit detection and laboratorial polarization calibration. This comparison is performed according to DPC on-orbit optical system imaging theory using the differential operation method. The divergence angle of the calibration light source should be larger than 0.14° to fulfill the polarization calibration requirement according to the analysis result of the model. The 499 nm polarization channel is taken as an example

and spectrum-tunable integrating spheres are used instead of the 0.125° divergence angle of quasi-parallel light as polarization calibration light source to test the validity of the model and the analysis result. Using spectrum-tunable integrating spheres instead of quasi-parallel light decreases the average deviations between the measurement DOLP of DPC and theoretical reference from 1.26×10

–2

to 4.4×10

–3

. We validate the model of matching the divergence angle of the calibration light source with the corresponding field angle. The method that uses spectrum-tunable integrating spheres instead of quasi-parallel light satisfies the high-precision laboratory polarimetric calibration requirements of DPC for scientific applications.

关键词

偏振遥感器偏振定标偏振光源发散角精度验证

Keywords

polarization remote sensorpolarization calibrationpolarization calibration light sourcedivergence angleprecision verification

references

陈立刚. 2008. 宽视场航空偏振成像仪的实验室定标研究. 合肥: 中国科学院合肥物质科学研究院: 8–74

Chen L G. 2008. Study of Laboratory Calibration of the airborne polarization CCD Camera with Wide Field of View. Hefei: Hefei Institute of Physical Science, Chinese Academy of Sciences: 8–74

Chen L G, Meng F G, Yuan Y L and Zheng X B. 2012. High-precision variable polarization light source. Procedia Engineering, 29: 1835–1839

Cooper A W, Lentz W J and Walker P L. 1996. Infrared polarization ship images and contrast in the MAPTIP experiment//Proceedings of the SPIE Volume 2828, Image Propagation through the Atmosphere. Denver, CO, United States: SPIE: 85–96 [DOI: 10.1117/12.254208]

Deschamps P Y, Herman M, Podaire A and Ratier A. 1992. POLDER instrument: mission objectives//Proceedings of the SPIE Volume 1747, Polarization and Remote Sensing. San Diego, CA, United States: SPIE: 72–91 [DOI: 10.1117/12.138835]

Goloub P, Deuze J L, Herman M and Fouquart Y. 1994. Analysis of the POLDER polarization measurements performed over cloud covers. IEEE Transactions on Geoscience and Remote Sensing, 32(1): 78–88

顾行发, 陈兴峰, 程天海, 李正强, 余涛, 谢东海, 许华. 2011. 多角度偏振遥感相机DPC在轨偏振定标. 物理学报, 60(7): 070702

Gu X F, Chen X F, Cheng T H, Li Z Q, Yu T, Xie D H and Xu H. 2011. In-flight polarization calibration methods of directional polarized remote sensing camera DPC. Acta Physica Sinica, 60(7): 070702 (

顾行发, 田国良, 余涛, 李小英, 高海亮, 谢勇. 2013. 航天光学遥感器辐射定标原理与方法[M]. 北京: 科学出版社: 479–492

Gu X F, Tian G L, Yu T, Li X Y, Gao H L and Xie Y. 2013. Space Optical Remote Sensor Radiometric Calibration Theory and Methods[M]. Beijing: Science Press: 479–492

黄红莲, 易维宁, 乔延利. 2014. 基于航空偏振相机的海上气溶胶光学特性反演与验证. 光学学报, 34(6): 0601004

Huang H L, Yi W N and Qiao Y L. 2014. Validation of retrieving aerosol optical parameters over the sea using airborne directional polarized camera. Acta Optica Sinica, 34(6): 0601004 (

康晴, 李健军, 陈立刚, 吴浩宇, 袁银麟, 孟凡刚, 翟文超, 戚涛, 郑小兵. 2015. 大动态范围可调线性偏振度参考光源检测与不确定度分析. 光学学报, 35(4): 0412003

Kang Q, Li J J, Chen L G, Wu H Y, Yuan Y L, Meng F G, Zhai W C, Qi T and Zheng X B. 2015. Test and uncertainty analysis of reference source with variable polarization degree and large dynamic range. Acta Optica Sinica, 35(4): 0412003 (

杨伟锋, 洪津, 乔延利. 2015. 星载多角度偏振成像仪光学系统设计. 光学学报, 35(8): 0822005

Yang W F, Hong J and Qiao Y L. 2015. Optical design of spaceborne directional polarization camera. Acta Optica Sinica, 35(8): 0822005 (

邹勇平, 徐水平, 李月锋, 林沂才. 2006. 实验室检定航摄相机内方位元素和畸变差计算方法的比较. 测绘技术装备, 8(1): 37–38, 24

Zou Y P, Xu S P, Li Y F, Lin Y C. 2006. Calculating approach comparison of interior orientation elements and lens distortion of an aerial metric camera inspected in laboratory. Geomatics Technology and Equipment, 8(1): 37–38, 24 (

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