三轴同步卫星无陀螺巡航下姿控异常及预警研究

通过分析三轴同步卫星无陀螺巡航模式下姿控系统频繁喷气导致推进系统A、B分支切换的现象及其原因，提出了一种分支切换预报方法。该方法能够根据太阳敏感器测量数据的变化，有效地对推进分支切换作出预警。同时，为了避免星上推进分支自主切换的发生，文中最后提出了2种可行的解决途径。

Research on the Abnormality of Attitude Control of Three-axis Stabilized Geostationary Satellites without a Gyro in Cruise Mode and Early Warning

This paper analyses the phenomenon and causes of switchover of the propulsion system branches A and B as a result of frequent thrusts of the attitude control system of a three-axis stabilized geostationary satellite without gyro in cruise mode, and presents a forecast method. The method efficaciously provides forecast of the switchover of the propulsion system branches based on the change of the sun sensor data. Two feasible methods are also proposed to avoid switchover of the propulsion system branches,