摘要
卫星姿态确定数学模型涉及到姿态敏感器系统、卫星姿态动力学与运动学原理以及数据处理方法,系统对象比较复杂。首先,基于欧拉角法和四元素法建立了微小卫星姿态运动学模型,基于相平面控制法建立了采用恒定推力的开关式控制的喷气姿态控制系统,随后,在MATLAB的S imu link交互式仿真集成环境中对模型进行仿真研究,验证了模型的有效性;最后,对卫星模型选取了适当的参数,仿真结果满足对定姿精度和姿态稳定度的要求,完成了模型的设计。为说明卫星姿态控制中相关的算法,文中介绍了simu link模块的结构框图。
Building a mathematical model of satellite attitude determination involves the attitude sensor system, the satellite attitude dynamic and kinematic principle, and the method of data processing, so the system object is quite complicated. In the dissertation, first the kinematic models of small satellite attitude based on Eular angle and Four elements law and the switch type attitude control systems controlled by fixed thrust are presented, then the model is simulated in Simulink, and the validity of the model is checked. Finally proper parameters are selected to meet the demand of attitude determination and stabilization. To explain the correlative arithmetic about the model, the configuration of simulink block is presented.
出处
《计算机仿真》
CSCD
2006年第11期71-74,共4页
Computer Simulation
关键词
姿态确定
姿态控制
喷气控制
仿真
Attitude determination
Attitude control
Jet control
Simulation
