To solve the problem that the excessive inclination and deviation angels of line of sight lead to the errors in spacecraft docking,it realizes the accurate docking of aircraft rendezvous trajectories,a radar ranging-based spacecraft docking error compensa-tion control technology is proposed.This paper establishes a spatial reference coordinate system,derives the dynamic state equation based on the orbit elements calculation results,analyzes the dynamic effects during the spacecraft docking process,calculates the the-oretical flight time and range of the radar according to the radar ranging principle,determines the accuracy in combination with the rel-evant parameters,and achieves the docking error based on the radar ranging.In the three-coordinate measuring machine structure model,the flight posture fitting conditions are defined,and based on the posture error solution,the error parameters are compensated and corrected to complete the spacecraft docking error compensation control method based on the radar ranging.Comparative experi-mental results show that the proposed method can simultaneously control the inclination or deviation angles within the range of 0～45.0°,which can effectively solve the spacecraft misalignment and meet the practical application requirements of precise docking of spacecraft rendezvous trajectories.
关键词
雷达测距/飞行器/交会对接/误差补偿控制/动力学状态方程/精度极限值/视线倾角/视线偏角
Key words
radar ranging/aircraft/rendezvous and docking/error compensation control/dynamic equation of state/accuracy lim-it/inclination angel of line of sight/deviation angel of line of sight
维普
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