• 大地测量学与导航 •

### 北斗卫星太阳光压解析模型建立及应用

1. 1. 北京空间飞行器总体设计部, 北京 100094;
2. 武汉大学, 湖北 武汉 430072
• 收稿日期:2018-03-15 修回日期:2018-10-11 出版日期:2019-02-20 发布日期:2019-03-02
• 作者简介:陈秋丽(1986-),女,博士生,高级工程师,研究方向为卫星导航技术。E-mail:cql_hong@163.com

### Solar radiation pressure modeling and application of BDS satellite

CHEN Qiuli1, YANG Hui1, CHEN Zhonggui1, WANG Haihong1, WANG Chen2

1. 1. Beijing Institute of Engineering Spacecraft System, Beijing 100094, China;
2. Wuhan University, Wuhan 430072, China
• Received:2018-03-15 Revised:2018-10-11 Online:2019-02-20 Published:2019-03-02

Abstract:

Solar radiation pressure (SRP) model is the basis of high precise orbit determination and positioning of navigation satellites. At present, it is not uncommon for the study of SRP model of BDS satellite. However, the establishment and application of comprehensive analytical SRP model based on satellite physical parameters are rare. Different from other conservative force and non-conservative force, SRP is closely related to the satellite's physical parameters and in-orbit state, which has obviously individual differences. On the basis of the physical mechanism of solar radiation, BDS satellite physical parameters, in-orbit attitude control mode, and so on, comprehensive analytical model has been modeled in this paper. Based on precise ephemeris and laser ranging data, the precision of comprehensive analytical model has been verified. And the precision of orbit determination is decimeter using this comprehensive analytical SRP model. According to the satellite conservation theorem of angular momentum and change of in-orbit telemetry parameters, the difference between comprehensive analytical model and actual in-orbit interference force has been analyzed and calculated. The addition of empirical items on the comprehensive analytical model has been proposed in section 4. Taking C08, C10 satellite of BDS as an example, the precision of satellite laser ranging (SLR) checking precision of them is 0.078 m and 0.084 m respectively. Compared with using the improved CODE empirical model, precision orbit accuracy of them has increased by 0.021 m and 0.045 m respectively.