The invention provides a large-breadth detection vertical orbit swing scanning method for a low-orbit satellite. The method comprises the following specific steps of (1) calculating the angular velocity of the satellite; (2) calculating the central position of an image in the satellite scanning process; (3) calculating the position of the satellite when pointing to the central position of the image based on the angular velocity of the satellite; (4) calculating an expected attitude of the satellite when pointing to the central position of the image according to the position of the satellite; and controlling the satellite according to the expected attitude to realize large-breadth detection vertical orbit swing scanning. The method is advantaged in that vertical orbit swing scanning of thesatellite can be realized, the topping time is fully utilized, and efficiency of agile imaging is improved.
本发明提供一种低轨卫星大幅宽探测垂轨摆扫方法,具体过程为:(一)计算卫星的角速度;(二)计算卫星扫描过程中图像的中心位置;(三)基于所述卫星角速度,计算指向图像中心位置时卫星的位置;(四)根据所述卫星的位置,计算指向图像中心位置时卫星的期望姿态;根据所述期望姿态对卫星进行控制,实现大幅宽探测垂轨摆扫。该方法能够实现卫星的垂轨摆扫,充分利用过顶时间,提升敏捷成像的效率。
Large-breadth detection vertical orbit swing scanning method for low-orbit satellite
一种低轨卫星大幅宽探测垂轨摆扫方法
2020-09-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B64G Raumfahrt , COSMONAUTICS |
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