Angular rate estimation and damping control of satellite with magnetometer data

Angular rate estimation and damping control of satellite with magnetometer data
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利用磁力计数据进行卫星角速率估计和阻尼控制

DOI:
10.1016/j.ijleo.2018.11.143
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发表时间:
2019-02
期刊:
International Journal for Light and Electron Optics
影响因子:
--
通讯作者:
姜连祥
姜连祥
中科院分区:
其他
文献类型:
--
作者:
李乐宝;李明翔;姜连祥

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将扩展卡尔曼滤波技术与三轴磁强计相结合,设计了一种在阻尼模式下估计卫星角速度的速率滤波算法,该算法可以获得无陀螺仪的翻滚卫星脱离运载火箭后的角速度。提出了一种改进的B点法,以减小发射分离后磁线圈在阻尼模式下的角速度。该控制方案可以提高卫星速率阻尼相的控制精度,使三轴角速度渐近收敛到零。本文将所提出的控制方案应用于卫星的减振模式,并将仿真结果与陀螺仪测量数据进行了比较。仿真结果不仅验证了该控制方法的有效性,而且验证了该控制方案具有较高的控制精度。
A rate filtering algorithm for estimating the satellite angular rate in damping mode is designed, by incorporating extended Kalman filter technique and three-axis magnetometers, which can obtain the angular rate of a tumbling satellite without gyroscopes after separation from the launch vehicle. An improved B-dot method is proposed to reduce the angular rate with magnetic coils in damping mode after launch separation. The proposed control scheme can improve the control precision of rate damping phase of satellite and make the tri-axial angular rate asymptotically converge to zero. In this paper, the proposed control scheme is applied to the damping mode of satellite, and simulation results compared with gyroscope measurement data. The simulation results not only show the effectiveness of the proposed control approach, but also verify that the proposed control scheme has high control precision.
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