地球同步转移轨道数字式太阳敏感器视场局部修正  

Partial Field of View Calibration for Digital Sun Sensor inGeosynchronous Transfer Orbit

作　　者：叶立军 刘付成 宝音贺西[1] YE Lijun;LIU Fucheng;BAOYIN Hexi(School of Aerospace Engineering,Tsinghua University,Beijing 100084;Shanghai Aerospace Control Technology Institute,Shanghai 201109;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201109;Shanghai Academy of Spaceflight Technology,Shanghai 201109)

机构地区：[1]清华大学航天航空学院,北京100084 [2]上海航天控制技术研究所,上海201109 [3]上海市空间智能控制技术重点实验室,上海201109 [4]上海航天技术研究院,上海201109

出　　处：《飞控与探测》2022年第3期37-43,共7页Flight Control & Detection

基　　金：国家重点研发计划(2016YFB0501003)。

摘　　要：在地球同步转移轨道远地点点火期间,星敏可能无法正常工作,提出了数太视场局部修正方法。在星上计算能力充裕、卫星平台稳定的巡航对日模式下,星敏可正常工作,通过规划卫星姿态机动,使太阳在数太视场内的运行轨迹形成一个局部封闭区域,且这个区域需包含远地点点火期间太阳运行路径,地面通过遥测获取姿态机动期间数太和星敏数据,并以星敏数据为基准,采用二维平面拟合的方式完成对数太视场的局部修正。数学仿真结果显示,修正区域内数太测量误差比修正前小1个数量级,证明了该方法的有效性。In the ignition mode(IM)at the apogee during the geosynchronous transfer orbit(GTO),the star-sensor may not work properly.A method of partial FOV calibration for DSS in GTO is proposed in this paper.With the sufficient calculation margin and the stable attitude,the star-sensor can work smoothly.Through the attitude path planning,the sun trajectory in the DSS s FOV forms a local area which needs to contain the sun trajectory in IM,the data of DSS.The ground station obtains the star-sensor data during the attitude maneuver through telemetry,and the two-dimensional fitting method is used to achieve the partial calibration for DSS based on the star-sensor.The mathematical simulation results show that,the DSS error is one order smaller than that before calibration in the local area,and the method proposed is effective.

关 键 词：数字式太阳敏感器 地球同步转移轨道 局部畸变修正 姿态路径规划 

分 类 号：V448[航空宇航科学与技术—飞行器设计]