Laboratory Calibration of an Ultraviolet-Visible Imaging Spectropolarimeter
文献类型：期刊论文
| 作者 | Shi, Jingjing2,3; Li, Mengfan2 ; Hu, Yadong2; Wang, Xiangjing2; Xu, Hua1; Chi, Gaojun2; Hong, Jin2,3
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| 刊名 | REMOTE SENSING
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| 出版日期 | 2022-08-01 |
| 卷号 | 14 |
| 关键词 | spectropolarimeter polarization geometric calibration spectral calibration radiometric calibration polarimetric calibration |
| DOI | 10.3390/rs14163898 |
| 通讯作者 | Hu, Yadong(huyadong@aiofm.ac.cn) |
| 英文摘要 | The ultraviolet-visible imaging spectropolarimeter (UVISP), developed by the Anhui Institute of Optics and Fine Mechanics (AIOFM), Chinese Academy of Science (CAS), is a dual-beam snapshot instrument for measuring the spectral, radiometric, and linear polarization information of absorbing aerosol in a wavelength range from 340 to 520 nm. In this paper, we propose a complete set of calibration methods for UVISP to ensure the accuracy of the measured radiation polarization data, thus guaranteeing the reliability of inversion results. In geometric calibration, we complete the assignment of the field of view (FOV) angle to each pixel of the detector using a high precision turntable and parallel light source. In addition, the geometric calibration accuracy of the S beam and P beam is also analyzed. The results show that the residuals of all row pixels are less than 0.12 degrees. Based on geometric calibration, a spectral calibration is conducted at each spectrum of the S beam and P beam for the given FOV, and the relation between the wavelength and pixel is obtained by a linear fitting procedure. For radiometric calibration, the uniformity of spectral responsivity is corrected, and the function between spectral radiance and output digital data is established. To improve the accuracy of the polarimetric measurement, a polarimetric calibration is proposed, and validated experimental results show that the root mean square (RMS) errors for the demodulated value are all within 0.011 for the input linear polarized light with different angles of linear polarization (AoLPs). Finally, field measurements are conducted, and the absolute deviations are all within 0.01 when the UVISP and CE-318 sun-sky polarimetric radiometer (CE318N) simultaneously measure the degree of linear polarization (DoLP) of the sky at different zenith angles. These experimental results demonstrate the efficiency and accuracy of the proposed calibration methods. |
| WOS关键词 | SPECTROSCOPIC POLARIMETRY ; RETARDATION ERRORS ; RECONSTRUCTION ; POLARIZATION ; ALIGNMENT ; MODULATION |
| 资助项目 | Equipment Advance Research Fund[305090306] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000845310100001 |
| 资助机构 | Equipment Advance Research Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131892]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu, Yadong |
| 作者单位 | 1.Chinese Acad Sci, Aerosp Informat Res Inst, State Environm Protect Key Lab Satellite Remote S, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Jingjing,Li, Mengfan,Hu, Yadong,et al. Laboratory Calibration of an Ultraviolet-Visible Imaging Spectropolarimeter[J]. REMOTE SENSING,2022,14. |
| APA | Shi, Jingjing.,Li, Mengfan.,Hu, Yadong.,Wang, Xiangjing.,Xu, Hua.,...&Hong, Jin.(2022).Laboratory Calibration of an Ultraviolet-Visible Imaging Spectropolarimeter.REMOTE SENSING,14. |
| MLA | Shi, Jingjing,et al."Laboratory Calibration of an Ultraviolet-Visible Imaging Spectropolarimeter".REMOTE SENSING 14(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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