基于射频敏感器的卫星三轴姿态确定方法研究  

Sattelite Three-Axis Attitude Determination Method Based on Radio-Frequency Sensor

作　　者：常建松[1,2] 李佳嘉[1,2] 武云丽[1,2] 曾海波[1,2] 

机构地区：[1]北京控制工程研究所,北京100190 [2]空间智能控制技术重点实验室,北京100190

出　　处：《空间控制技术与应用》2011年第5期14-19,共6页Aerospace Control and Application

摘　　要：带有大型网状展开天线的同步轨道移动通信卫星,一般通过卫星本体的姿态控制间接保障星上通信天线的指向精度,难以避免天线因自身安装、变形、挠性振动等引起的指向误差.提出直接利用射频敏感器测量的信标信号误差确定卫星三轴姿态,并计算天线保持目标指向所需三轴姿态角偏差,通过卫星姿态控制系统实时或离线姿态修正以保证天线指向精度.利用数学仿真方式验证算法正确性和有效性.GEO mobile communication satellites with large deployable mesh antenna generally control body attitude to fulfill the antenna pointing accuracy indirectly.So it is difficult to avoid the error caused by setting,deformation and flexible vibration of the antenna itself.An attitude determination method directly based on radio-frequency sensor＇s signal is presented in this paper and used to compute the compensated three-axis attitude angles to maintain the desired antenna pointing by controlling satellite attitude in real time or off line.Computer simulation results prove that the method is correct and effective.

关 键 词：射频敏感器 姿态确定 天线指向控制 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]