一种确定自旋卫星姿态的新方法  

A New Method of Attitude Determination of Spin-Stabilized Satellite

作　　者：吕晓锋[1,2] 王大力[3,2] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200030 [2]西安卫星测控中心,陕西西安710043 [3]西北工业大学航天学院,陕西西安710068

出　　处：《上海航天》2011年第1期40-45,共6页Aerospace Shanghai

摘　　要：提出了一种在自旋稳定卫星自旋轴与几何体轴重合或几乎重合时只利用太阳角计算自旋卫星姿态的方法。给出了方法的原理及适用范围。研究表明:定姿精度仅与太敏测量精度有关,减小了传统方法中太敏与地敏两项测量误差产生的误差,方法原理简单、精度高。由实际卫星数据的长期验证可知:方法能在卫星自旋轴与实际几何轴偏差较小时实现快速定姿,定姿结果满足要求。A new method for attitude calculation of spin-stabilized satellites,which only needed the solar angle,was put forward when the spin-stabilized axis was superposition with the geometry axis of the satellite in this paper.The principle and the applicable range were explained in the study.The study showed that the accuracy of the attitude determination was related to the measurement of the solar sensor only,which reduced the error caused by the measurement errors of the solar senor and the earth sensor in tradition method.The principle of the new method with high accuracy was simple.The long term verification of the data of the real satellite showed that the fast attitude determination could be realized when the difference of the spin-stabilized axis and real geometry axis was rather small.The attitude determination result would meet the requirements.

关 键 词：自旋稳定卫星 定姿方法 太阳角 太阳敏感器 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]