• 论文 •

### 天基星空背景观测覆盖范围计算方法研究

1. 1 北京理工大学 宇航学院，北京100081
2 中国科学院 空间应用工程与技术中心，北京100094
3 航天东方红卫星有限公司，北京100094
• 出版日期:2022-09-09 发布日期:2022-09-09

### Calculation method of the coverage region for spaceborne observations above the horizon

SUN Yangyuxi，QIAO Dong，ZHANG Chen，ZHU Zhengfan，WEN Changxuan

1. 1 School of Aerospace Engineering，Beijing Institute of Technology，Beijing 100081，China
2 Technology and Engineering Center for Space Utilization，Chinese Academy of Sciences，Beijing 100094，China
3 DFH Satellite Co.，Ltd.，Beijing 100094，China
• Online:2022-09-09 Published:2022-09-09

Abstract: For the increasingly complex space environment，space-based observations have attracted more and more attention due to their flexible distribution and all-weather observation，which is a typical above-the-horizon（ATH）observation problem.Based on the concept of segmental integration，a quantitative calculation method of the coverage region for ATH observations was proposed，which includes all possibilities of 10 integral forms of the problem for scenarios with any observation constraints.Not only has the two-dimensional planar coverage problem been verified with existing methods，but also the quantitative analytical calculation problem of the coverage volume of ATH in three-dimensional space has been solved for the first time.The simulation results show that there is a significant difference between the optimal orbit altitude corresponding to the maximization of planar and spatial coverage.The proposed approaches are more accurate and efficient in coverage performance，providing reference for constellation design.