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

  • role： First author第一作者
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

    University of Science and Technology of China, Hefei 230026, China

  • Email：qkang@mail.ustc.edu.cn
  • Introduction：康晴(1988—　)，女，博士研究生，研究方向为光学遥感器偏振定标方法。E-mail：qkang@mail.ustc.edu.cn
Qing KANG12,  
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Yinlin YUAN1,  
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Jianjun LI1,  
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Wenchao ZHAI1,  
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Haoyu WU1,  
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

jin HONG1,  
  • role： Corresponding author通信作者
  • Affiliation：

    Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

  • Email：xbzheng@aiofm.ac.cn
  • Introduction：郑小兵(1969—　)，男，研究员，研究方向为光辐射精密测量的先进方法与仪器、卫星光学遥感器的高精度定标、光学遥感和海洋光学等方面。E-mail：xbzheng@aiofm.ac.cn
Xiaobing ZHENG1*

résumé

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.

mots-clés

polarization remote sensor;polarization calibration;polarization calibration light source;divergence angle;precision verification

References

  1. 1.
    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
  2. 2.
    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
  3. 3.
    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]
  4. 4.
    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]
  5. 5.
    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
  6. 6.
    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 (
  7. 7.
    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
  8. 8.
    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 (
  9. 9.
    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 (
  10. 10.
    Yang W F, Hong J and Qiao Y L. 2015. Optical design of spaceborne directional polarization camera. Acta Optica Sinica, 35(8): 0822005 (
  11. 11.
    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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