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Precision analysis of autonomous orbit determination using star sensor for Beidou MEO satellite |
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| Authors: | Lin Shang Jiachao Chang Jun Zhang Guotong Li |
| Institution: | 1. Shanghai Engineering Center for Microsatellites, Shanghai, China;2. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China;3. University of Chinese Academy of Sciences, Beijing, China;4. School of Information Science and Technology, ShanghaiTech University, Shanghai, China |
| Abstract: | This paper focuses on the autonomous orbit determination accuracy of Beidou MEO satellite using the onboard observations of the star sensors and infrared horizon sensor. A polynomial fitting method is proposed to calibrate the periodic error in the observation of the infrared horizon sensor, which will greatly influence the accuracy of autonomous orbit determination. Test results show that the periodic error can be eliminated using the polynomial fitting method. The User Range Error (URE) of Beidou MEO satellite is less than 2?km using the observations of the star sensors and infrared horizon sensor for autonomous orbit determination. The error of the Right Ascension of Ascending Node (RAAN) is less than 60? and the observations of star sensors can be used as a spatial basis for Beidou MEO navigation constellation. |
| Keywords: | Autonomous navigation Star sensor Infrared horizon sensor Installation error Measurement error Onboard data |
| 本文献已被 ScienceDirect 等数据库收录！ | |