In view of the increasing demand for pointing accuracy, stability and rapid maneuver of astronomical observation satellites and remote sensing satellites, etc. In this paper, a multi-stage coordinated control method of satellites is proposed, which realizes the ultra-high pointing accuracy and stability of payload. Firstly, a multi-stage dynamics model of satellite is established. Secondly, by designing a multi-stage integrated control method consisting of a primary platform, an active pointing ultra-static platform and a precision image stabilization system, the precision and stability of each stage are gradually improved, thereby ultra-high pointing accuracy and stability of the payload visual axis is achieved. Finally, the effectiveness of the three-stage coordinated control method designed in this paper is verified through numerical simulation, which significantly improves the attitude control performance of the payload and provides a technical foundation for the development of ultra-high accuracy and stability control of spacecraft in China.

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A Multi-stage Coordinated Control Method with High Precision and Stability for Spacecraft

  • Jian Cai,
  • Renjian Hao,
  • Hong Zong,
  • Helong Liu,
  • Yong Li,
  • Xinyi Wang,
  • Yan Wang

摘要

In view of the increasing demand for pointing accuracy, stability and rapid maneuver of astronomical observation satellites and remote sensing satellites, etc. In this paper, a multi-stage coordinated control method of satellites is proposed, which realizes the ultra-high pointing accuracy and stability of payload. Firstly, a multi-stage dynamics model of satellite is established. Secondly, by designing a multi-stage integrated control method consisting of a primary platform, an active pointing ultra-static platform and a precision image stabilization system, the precision and stability of each stage are gradually improved, thereby ultra-high pointing accuracy and stability of the payload visual axis is achieved. Finally, the effectiveness of the three-stage coordinated control method designed in this paper is verified through numerical simulation, which significantly improves the attitude control performance of the payload and provides a technical foundation for the development of ultra-high accuracy and stability control of spacecraft in China.