偏振三维成像仪的相对偏振方向定标方法
作者:
作者单位:

1.北京空间机电研究所,北京 100094;2.西安电子科技大学 光电工程学院,陕西 西安 710071;3.长春理工大学 空间光电技术国家与地方联合工程研究中心,吉林 长春 130022

中图分类号:

O436.3


Calibration method of relative linear deviation angle of polarization three-dimensional imager
Author:
Affiliation:

1.Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China;2.School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710071, China;3.National and Local Joint Engineering Research Center for Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China

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    摘要:

    在介绍偏振三维成像机理、四孔径偏振三维成像仪组成的基础上,开展四孔径相对偏振方向对偏振三维成像精度影响分析,确定四孔径相对偏振方向精度要求。制定了四孔径镜头偏振片相对偏振方向定标方法和四孔径偏振三维成像仪相对偏振方向定标方法,搭建了定标装置,在实验室内开展了相对偏振方向定标。四孔径镜头偏振片相对偏振方向定标误差为±0.5o,四孔径偏振三维成像仪相对偏振方向误差为±1o,从而可保证偏振三维反演的法向量误差为-5.47%~5.80%,为偏振三维成像仪高质量成像提供保障。

    Abstract:

    Based on introduction about principle of polarization three-dimensional image and components of four apertures polarization three-dimensional imager, the influence of four apertures relative polarization direction on polarization three-dimensional imaging accuracy was analyzed, to determine the accuracy requirements for four apertures relative polarization directions. The calibration method of relative polarization direction of four linear polarizers in four aperture lenses and calibration method of relative polarization direction of four apertures polarization three-dimensional imager was developed. The calibration device was built, and the relative polarization direction calibration was carried out in the laboratory. The calibration error of relative polarization directions of four linear polarizers in four aperture lenses was ±0.5o. The calibration error of relative polarization direction of four apertures polarization three-dimensional imager was ±1o. Thus, the normal direction error of three-dimensional polarization inversion can be guaranteed to be -5.47%~5.80%,that would ensure high-quality imaging of four apertures polarization three-dimensional imager.

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张月,张学敏,柳祎,李轩,张肃,俞越,焦建超,苏云.偏振三维成像仪的相对偏振方向定标方法[J].红外与毫米波学报,2022,41(6):1062~1071]. ZHANG Yue, ZHANG Xue-Min, LIU Yi, LI Xuan, ZHANG Su, YU Yue, JIAO Jian-Chao, SU Yun. Calibration method of relative linear deviation angle of polarization three-dimensional imager[J]. J. Infrared Millim. Waves,2022,41(6):1062~1071.]

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  • 收稿日期:2022-05-14
  • 最后修改日期:2022-11-08
  • 录用日期:2022-08-10
  • 在线发布日期: 2022-11-07
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