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