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

doi:10.1016/j.icarus.2022.115208

HFCAS OpenIR

	A reflectance calibration method for Multispectral Camera (MSCam) on the Zhurong rover
	Zhang, Qing 1,2; Liu, Dawei 1; Liu, Jianjun 1,2; Guo, Lin 1,2; Xue, Bin 3; Yang, Jianfeng 3; Yang, Benyong4 ; Wang, Xing 1,2; Huang, Hai 1,2; Liu, Bin 1; Chen, Wangli 1; Ren, Xin 1
	2022-11-15
发表期刊	ICARUS
ISSN	0019-1035
通讯作者	Liu, Jianjun(liujj@nao.cas.cn)
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.
关键词	Mars Reflectance Multispectral Camera Calibration target
DOI	10.1016/j.icarus.2022.115208
关键词[WOS]	MARS ; PARAMETERS ; PRODUCTS ; MODEL ; DUST
收录类别	SCI
语种	英语
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
项目资助者	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
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:000862710500002
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/129138
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.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Lunar & Deep Space Explorat Technol Lab Xian Inst, Xian, Peoples R China 4.Chinese Acad Sci, Key Lab Opt Calibrat & Characterizat, Hefei, 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).