中国空间科学技术（中英文）2025，Vol.45Issue(2)：140-149,10.DOI:10.16708/j.cnki.1000-758X.2025.0032
基于侧摆角约束的低轨光学卫星成像概率分析
Imaging probability analysis of low-Earth-orbit optical satellite based on roll angle constraint
摘要
Abstract
Aiming at the Earth observation and imaging task of low-Earth-orbit optical satellite,the imaging probability distribution of the Earth surface target under the condition of satellite rolling attitude is studied.Firstly,the mathematical relationship between the imaging probability density function and the roll angle is analyzed analytically,and on this basis,the general formula of imaging probability in the roll angle range is given.Then,theoretical analysis and STK simulation analysis are carried out on the imaging probability of 15 combinations for five orbit altitude of 400km,500km,600 km,700 km and 800 km and three maximum roll angles of 30°,45° and 60°.Finally,the theoretical results and simulation results are compared and analyzed.The results of data comparison show that the theoretical analysis formula has high accuracy with a relative error of no more than 2％in most cases.It can be used for rapid estimation of imaging probability,effectively reducing the workload of satellite multi-scheme comparison and analysis.关键词
低轨光学卫星/对地观测/侧摆角约束/成像概率密度/成像概率Key words
low-Earth-orbit optical satellite/earth observation/roll angle constraint/imaging probability density/maging probability分类
航空航天引用本文复制引用
王中果..基于侧摆角约束的低轨光学卫星成像概率分析[J].中国空间科学技术（中英文）,2025,45(2):140-149,10.基金项目
国家重大科技专项工程 （）
