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A reflectance calibration method for Multispectral Camera (MSCam) on the Zhurong rover

文献类型：期刊论文

作者Zhang, Qing1,4; Liu, Dawei1; Liu, Jianjun1,4; Guo, Lin1,4; Xue, Bin3; Yang, Jianfeng3; Yang, Benyong2; Wang, Xing1,4; Huang, Hai1,4; Liu, Bin1
刊名ICARUS
出版日期2022-11-15
卷号387
ISSN号0019-1035
关键词Mars Reflectance Multispectral Camera Calibration target
DOI10.1016/j.icarus.2022.115208
通讯作者Liu, Jianjun(liujj@nao.cas.cn)
英文摘要The Multispectral Camera (MSCam) onboard the Zhurong rover, collecting eight band images in the visible and near-infrared wavelengths, aims to investigate the morphological characteristics and mineralogic properties of the Martian surface. Due to the perturbation of Martian atmosphere, accurate reflectance calibration for the MSCam data is crucial for the further spectral interpretation. Here, we proposed a reflectance calibration method to convert the MSCam radiance to reflectance factor using the MSCam calibration target. This study begins with the laboratory multi-angle measurements to characterize the photometric properties of the MSCam calibration target. Based on these photometric characteristics, a reflectance model consisting of a directional reflection term and a specular reflection term is developed. The constructed reflectance model achieves a high precision, the root mean square errors (RMSEs) between the modeled and measured reflectance factor are <1.5% and the determination coefficients (R2) are >99.3% in all cases. We then applied this reflectance model to the in-flight observations to derive the reflectance of the Martian surface. The validations indicate that the in-flight derived reflectance factors of the calibration target are consistent with the laboratory measurements, and the derived reflectance spectra of the Martian surface are comparable to the spectra captured by the other mission.
WOS关键词MARS ; PARAMETERS ; PRODUCTS ; MODEL ; DUST
资助项目Key Research Program of Chinese Academy of Sciences[ZDBS-SSW-TLC001] ; National Natural Science Foundation of China[41875042] ; Application System (GRAS) of China's Lunar and Planetary Exploration Program
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000862710500002
资助机构Key Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Application System (GRAS) of China's Lunar and Planetary Exploration Program
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/129137]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, Jianjun
作者单位1.Chinese Acad Sci, Key Lab Lunar & Deep Space Explorat, Natl Astron Observ, Beijing, Peoples R China
2.Chinese Acad Sci, Key Lab Opt Calibrat & Characterizat, Hefei, Peoples R China
3.Chinese Acad Sci, Lunar & Deep Space Explorat Technol Lab Xian Inst, Xian, Peoples R China
4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Qing,Liu, Dawei,Liu, Jianjun,et al. A reflectance calibration method for Multispectral Camera (MSCam) on the Zhurong rover[J]. ICARUS,2022,387.
APA Zhang, Qing.,Liu, Dawei.,Liu, Jianjun.,Guo, Lin.,Xue, Bin.,...&Ren, Xin.(2022).A reflectance calibration method for Multispectral Camera (MSCam) on the Zhurong rover.ICARUS,387.
MLA Zhang, Qing,et al."A reflectance calibration method for Multispectral Camera (MSCam) on the Zhurong rover".ICARUS 387(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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