Radiometer-to-imager in-flight cross calibration and verification | |
Zhu, ShuangShuang1,2,3; Hong, Jin1,2; Li, Zhenyang1,2; Lei, Xuefeng1,2,3; Zou, Peng1,2; Liu, Zhenhai1,2; Song, Maoxin1,2 | |
刊名 | OPTICS EXPRESS |
2020-04-13 | |
卷号 | 28 |
ISSN号 | 1094-4087 |
DOI | 10.1364/OE.386566 |
通讯作者 | Zhu, ShuangShuang(zhuss@mail.ustc.edu.cn) |
英文摘要 | This work develops a method to complete the in-flight cross calibration and verification between a radiometer and an imager hosted on aircraft. The in-flight cross calibration is data transmission through time matching, space matching, and spectral matching of two polarization instruments on the same platform, and this method can not only complete the data transfer without considering the surface type to reduce the calibration cycle but also can obtain huge and rich calibration data. The radiometer is the particulate observing scanning polarimeter (POSP), which takes multi-angle, photo-polarimetric measurements in several spectral channels. The POSP measurements in the bands of 670nm and 865nm used in this work are simultaneously measured by the simultaneous imaging polarization camera (SIPC), which is on the same aircraft. The POSP is designed to provide high precision measurements of the atmospheric or earth surface radiation polarization with a substantial along-track spatial coverage, while the SIPC can provide large spatial coverage and high-resolution measurements. Through radiometer-to-imager in-flight cross calibration, the high-precision calibration coefficient of the POSP is transmitted to the SIPC, which can effectively improve the measurement accuracy of the SIPC, and realizes the remote sensing monitoring of atmospheric fine particles with large spatial coverage and high detection precision. First, we deduce the polarization models of the POSP and the SIPC, respectively, and express them in the form of Mueller matrixes, which describe the transformation from incoming polarized radiation to measured signals. Then, we deduce the in-flight cross calibration model of the POSP and the SIPC. Finally, the in-flight experiments have been carried out to validate the radiometer-to-imager in-flight cross calibration model. The results have shown the possibility to minimize the SIPC polarization degree errors with a roughly 0.01 bias relative to POSP on the land. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
资助项目 | International Team of Advanced Polarization Remote Sensing Technology and Application[GJTD-2018-15] |
WOS关键词 | AEROSOL ; SPACE |
WOS研究方向 | Optics |
语种 | 英语 |
出版者 | OPTICAL SOC AMER |
WOS记录号 | WOS:000526518300025 |
资助机构 | International Team of Advanced Polarization Remote Sensing Technology and Application |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103729] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Zhu, ShuangShuang |
作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Calibrat & Characterizat, 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 | Zhu, ShuangShuang,Hong, Jin,Li, Zhenyang,et al. Radiometer-to-imager in-flight cross calibration and verification[J]. OPTICS EXPRESS,2020,28. |
APA | Zhu, ShuangShuang.,Hong, Jin.,Li, Zhenyang.,Lei, Xuefeng.,Zou, Peng.,...&Song, Maoxin.(2020).Radiometer-to-imager in-flight cross calibration and verification.OPTICS EXPRESS,28. |
MLA | Zhu, ShuangShuang,et al."Radiometer-to-imager in-flight cross calibration and verification".OPTICS EXPRESS 28(2020). |
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