The invention discloses a satellite-borne high-precision rotary table pointing real-time continuous guiding system and method, the system comprises a satellite platform, a two-dimensional rotary table and a load camera, one end of the two-dimensional rotary table is fixed on the satellite platform, the other end of the two-dimensional rotary table is connected with the load camera, and the two-dimensional rotary table drives the pointing direction of the load camera to change through azimuth rotation and pitching rotation. The method comprises the following steps: S1, acquiring an initial value of an on-orbit state of a satellite; s2, performing position extrapolation calculation on the satellite; s3, calculating an orbit interpolation; s4, performing attitude extrapolation calculation on the satellite; and S5, calculating the real-time direction of the rotary table. By adopting the method provided by the invention, the pointing can be calculated in real time according to the attitude of the satellite and the position of the target, the ground prediction deviation and the control coupling error caused by the rotation process of the satellite turntable can be shielded, so that the interference can be inhibited, the pointing precision is high, and the dynamic cooperative control is supported.
本发明公开了一种星载高精度转台指向实时连续引导系统和方法,系统包括卫星平台、二维转台和载荷相机,其中二维转台一端固定在卫星平台上,另一端与载荷相机连接,二维转台通过方位转动、俯仰转动带动载荷相机指向变化。方法包括以下步骤:步骤S1,获取卫星在轨状态初始值;步骤S2,对卫星做位置外推计算;步骤S3,计算轨道插值;步骤S4,对卫星做姿态外推计算;步骤S5,计算转台实时指向。采用本发明的方法,可以实时根据卫星的姿态和目标的位置,实时计算指向,屏蔽地面预测偏差和卫星转台转动过程带来的控制耦合误差,因此可以抑制干扰,指向精度高,支持动态协同控制。
Satellite-borne high-precision turntable pointing real-time continuous guiding system and method
一种星载高精度转台指向实时连续引导系统和方法
2024-08-16
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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