Chinese Space Science and Technology ›› 2021, Vol. 41 ›› Issue (3): 114-122.doi: 10.16708/j.cnki.1000.758X.2021.0045

Previous Articles    

Research on satellite optical axis compound pointing control method

YAN Nanxing1, LIN Zhe1,*, LIU Yaning2, YU Fei1, WANG Chun1, KANG Jianbing1   

  1. 1 Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China
    2 Beijing Aerospace Feiteng Equipment Technology Co, Ltd, Beijing 100094, China
  • Received:2020-09-11 Revised:2020-11-13 Accepted:2020-11-23 Online:2021-06-25 Published:2021-06-25
  • Contact: 林喆:yandouhk@163.com E-mail:yandouhk@163.com
  • About author:鄢南兴(1988-),男,硕士,研究方向为空间相机伺服控制,yandouhk@163.com。 林喆(1978-)男,研究员,博士,研究方向为卫星导航与制导,yandouhk@163.com。
  • Supported by:
    科技部重点研发计划(2016YFB0500702)

Abstract: Tracking moving target in space with optical payload on satellite platform has been a key technology in the development of surveillance satellite. How to improve the pointing range, tracking accuracy and maneuverability of satellite optical axis is the focus of this paper. In order to improve the performance of satellite optical axis pointing, the scheme of satellite attitude adjustment can′t meet the requirements alone. The analysis shows that, in order to improve the pointing range, tracking accuracy and maneuverability of the satellite optical axis, the effective cooperation of the satellite attitude control system, optical turret control system and fastmirror control system is necessary. The satellite attitude control system, optical turret control system and fast-mirror control system were analyzed and modeled to confirm the bandwidth of each system. A compound pointing compensator was designed with the frequency response method through the PQ feedback system. The relative motion trajectory of the satellite and the target was simplified and simulated. The simulation data show that the tracking error is reduced from 0.6° to 0.05°, the effectiveness of the optical axis compound pointing control method is verified. 

Key words: satellite optical axis, compound control, attitude control, optical turret, fast-mirror

CLC Number: