摘要
运行在低轨道上的三轴对地稳定小卫星在安全保持模式下的姿态确定要求测量部件的可靠性高,功耗低。本文选用三轴磁强计作为测量部件,给出在安全保持模式下的增广型Kalman滤波器(EKF)的设计。仿真结果表明在安全保持模式下,对卫星姿态能够进行很好的估计或校正。
This paper discusses the attitude determination problem of low earth orbit three-axis satellite working under the safety-hold mode. High reliability and low power expense of the measure devices are required in attitude determination. Three-axis magnetometer is used as the measure device. An extended Kalman filter is developed to estimate the attitude. The simulation result shows that the extended Kalman filter can effectively estimate and calibrate the attitude of satellite in safety-hold mode.
出处
《航天控制》
CSCD
北大核心
2006年第4期51-56,共6页
Aerospace Control
