Analysis of sun pointing error of spaceborne solar spectroradiometer based on Monte Carlo method

doi:10.37188/OPE.20212903.0474

CIOMP OpenIR

	Analysis of sun pointing error of spaceborne solar spectroradiometer based on Monte Carlo method
	X. Guo; C.-H. Hu; C.-X. Yan; Y.-F. Guo; Z.-L. Ma and Q.-L. Hu
	2021
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	29 期号:3 页码:474-483
摘要	To guarantee the efficient operation, that is, capture of solar spectral data, of a solar spectroradiometer, the two-dimensional pointing turntable that carries the spectrometer should precisely track the sun over long periods. Highly precise sun pointing ensures that the sun stays in the effective field of vision of the guide telescope. Specifically, according to the solar vector and positioning data received from the satellite, the assembly error is corrected and the reference data for pointing are calculated after correction, ensuring that the pointing error is less than 1. To accomplish this, coordinate systems were built into all the hexahedral reference prisms on the turntable. and the mathematical model of sun pointing was implemented using the transformation matrices of the coordinate systems. Further, the relationship between the turntable's angle of adjustment and the solar vector on the orbit coordinate system was derived using inverse kinematics. then the main source of error during operation of the spectrometer was analyzed along with its mode of operation in orbit; from these analyses, the pointing error model was built based on the Monte Carlo method on MATLAB. The model was employed to perform a simulation and analysis of sun pointing. The simulation results demonstrate that the pointing error is less than 0.35. Finally, the simulationwas performed to obtain the result that the pointing error under the vernal equinox orbit is less than 0.16, meeting the requirement for the field of view of the guide telescope. The correctness and effectiveness of the mathematical model presented in this paper are validated based on the test results, which simultaneously offer a design reference for the spectrometer. 2021, Science Press. All right reserved.
DOI	10.37188/OPE.20212903.0474
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65048
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Guo,C.-H. Hu,C.-X. Yan,et al. Analysis of sun pointing error of spaceborne solar spectroradiometer based on Monte Carlo method[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2021,29(3):474-483.
APA	X. Guo,C.-H. Hu,C.-X. Yan,Y.-F. Guo,&Z.-L. Ma and Q.-L. Hu.(2021).Analysis of sun pointing error of spaceborne solar spectroradiometer based on Monte Carlo method.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,29(3),474-483.
MLA	X. Guo,et al."Analysis of sun pointing error of spaceborne solar spectroradiometer based on Monte Carlo method".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 29.3(2021):474-483.

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