The invention discloses an intelligent pulse width correction method during satellite orbit height fine adjustment. The method comprises the following steps: S1, calculating star angular velocity change before and after point spraying of an orbit height fine adjustment thruster according to gyroscope information; s2, measuring the effect of pulse width correction according to the last two fine adjustment results of the track height, and updating a pulse width adjustment coefficient; and S3, according to the star angular velocity change calculated in the step S1 and the pulse width adjustment coefficient calculated in the step S2, calculating the pulse width correction amount, determining the instruction pulse width of the next orbit height fine adjustment thruster spot spraying, and returning to the step S1. According to the method, in-orbit uncertainty and errors can be better dealt with, the point spraying pulse width of the thruster is adjusted in real time so that the moment of the thruster can be offset as much as possible, and the pointing precision and the attitude stability of a star during fine adjustment of the orbit height are improved.
本发明公开了一种卫星轨道高度微调时的智能脉宽修正方法,包括:步骤S1、根据陀螺信息计算轨道高度微调推力器点喷前后的星体角速度变化;步骤S2、根据最近两次轨道高度微调结果,衡量脉宽修正的效果,更新脉宽调节系数;步骤S3、根据所述步骤S1计算的星体角速度变化和所述步骤S2计算的脉宽调节系数,计算脉宽修正量,确定下一次轨道高度微调推力器点喷的指令脉宽,并返回至所述步骤S1。本发明能够更好地应对在轨不确定性和误差,实时调整推力器点喷脉宽使推力器力矩尽可能抵消,提高了轨道高度微调时星体的指向精度和姿态稳定度。
Intelligent pulse width correction method during satellite orbit height fine adjustment
一种卫星轨道高度微调时的智能脉宽修正方法
2023-06-23
Patent
Electronic Resource
Chinese
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