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大孔径静态干涉成像光谱仪径向畸变导致的谱线偏移误差的校正

安玲坪 王爽 张耿 李娟 刘学斌

安玲坪, 王爽, 张耿, 李娟, 刘学斌. 大孔径静态干涉成像光谱仪径向畸变导致的谱线偏移误差的校正[J]. 中国光学, 2021, 14(2): 382-389. doi: 10.37188/CO.2020-0084
引用本文: 安玲坪, 王爽, 张耿, 李娟, 刘学斌. 大孔径静态干涉成像光谱仪径向畸变导致的谱线偏移误差的校正[J]. 中国光学, 2021, 14(2): 382-389. doi: 10.37188/CO.2020-0084
AN Ling-ping, WANG Shuang, ZHANG Geng, LI Juan, LIU Xue-bin. Corrective method for spectral offset error caused by radial distortion in the large aperture static imaging spectrometer[J]. Chinese Optics, 2021, 14(2): 382-389. doi: 10.37188/CO.2020-0084
Citation: AN Ling-ping, WANG Shuang, ZHANG Geng, LI Juan, LIU Xue-bin. Corrective method for spectral offset error caused by radial distortion in the large aperture static imaging spectrometer[J]. Chinese Optics, 2021, 14(2): 382-389. doi: 10.37188/CO.2020-0084

大孔径静态干涉成像光谱仪径向畸变导致的谱线偏移误差的校正

doi: 10.37188/CO.2020-0084
基金项目: 国家重点研发计划项目(No. 2018YFB0504900,No. 2018YFB0504901)
详细信息
    作者简介:

    安玲坪(1996—),女,山西忻州人,博士研究生,2018年于太原理工大学获得学士学位,主要从事光谱成像仪器定量化技术研究。E-mail:anlingping@opt.cn

    王爽:王 爽(1980—),男,黑龙江东宁人,博士,研究员,硕士生导师,2002年、2006年于北京理工大学分别获得学士、硕士学位,2014年于中国科学院西安光学精密机械研究所获得博士学位,主要从事光谱成像理论与仪器开发、光谱成像数据处理与定量化研究。E-mail:wangshuang@opt.ac.cn

  • 中图分类号: TP751.1

Corrective method for spectral offset error caused by radial distortion in the large aperture static imaging spectrometer

Funds: Supported by National Key R&D Program of China (No. 2018YFB0504900, No. 2018YFB0504901)
More Information
  • 摘要: 为提高大孔径静态干涉成像光谱仪在视场增大时的光谱定标精度,减小径向畸变对光谱精度的影响,本文提出一种基于光谱——畸变关联模型的光谱定标系数修正方法,给出了波数和波长修正公式。采用594.1 nm和632.8 nm气体激光器对成像光谱仪进行了光谱成像实验,并对数据进行了处理和分析。结果表明,当存在0.3%的桶形畸变时,边缘视场的反演光谱存在2 nm左右的偏移,利用本文方法校正后,谱线偏移减小到0.1 nm左右。该方法仅需根据镜头畸变参数即可完成修正,简化了实验室光谱定标流程,提高了工作效率,也可应用于星载干涉光谱数据的在轨参数校正。
  • 图  1  LASIS结构示意图

    Figure  1.  Schematic diagram of LASIS structure

    图  2  LASIS干涉原理示意图

    Figure  2.  Schematic diagram of LASIS interference

    图  3  径向畸变效果图

    Figure  3.  Diagram of the radial distortion effects

    图  4  仿真试验流程图

    Figure  4.  Flow chart of the simulation experiment

    图  5  Matlab模拟结果

    Figure  5.  Matlab simulation results

    图  6  光谱定标实验示意图

    Figure  6.  Schematic diagram of the spectral calibration experiment

    图  7  激光干涉图

    Figure  7.  Interferogram of the lasers

    图  8  激光三视场归一化反演光谱

    Figure  8.  The normalized inversion spectra of the three fields of view of the lasers

    图  9  光谱定标误差校正

    Figure  9.  Correction of spectral calibration

    图  10  氧气红外吸收带

    Figure  10.  Absorption band of oxygen in infrared wavelengths

    表  1  激光中心波长对比

    Table  1.   Comparison of the lasers’ center wavelength

    像元中心波长/nm
    参考值$ {\lambda }_{0} $校正前$ \lambda $误差$ \left|\lambda -{\lambda }_{0}\right| $校正后$ \lambda {'} $误差$ \left|\lambda {'}-{\lambda }_{0}\right| $
    100594.1595.57621.4762594.00970.0903
    400594.76030.6603594.01260.0874
    1000594.13420.0342594.12600.0260
    1100594.13420.0342594.13280.0328
    1700594.71860.6186594.05940.0406
    2000595.45061.3506594.01360.0864
    100632.8634.54291.7429632.82210.0221
    400633.56930.7693632.73680.0632
    1000632.83510.0351632.82210.0221
    1100632.81140.0114632.81100.0110
    1700633.37960.5796632.71070.0893
    2000634.11511.3151632.63370.1663
    下载: 导出CSV
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  • 收稿日期:  2020-05-08
  • 修回日期:  2020-06-15
  • 网络出版日期:  2021-02-08
  • 刊出日期:  2021-04-01

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