空间快速绕飞与视线指向的建模与控制  

Modeling and Control on Fast Fly-Around and Line of Sight Pointing

作　　者：张庆展 曾占魁[2,3] 靳永强[1,2] 赵金才 

机构地区：[1]上海航天技术研究院航天运输与维护总体技术研究中心,上海201109 [2]上海宇航系统工程研究所,上海201109 [3]哈尔滨工业大学,哈尔滨150001

出　　处：《宇航学报》2014年第3期324-330,共7页Journal of Astronautics

基　　金：上海市科学技术委员会资助课题(13QB1404000)

摘　　要：研究了航天器空间任意方位快速绕飞与视线指向的建模与控制问题。定义合理的绕飞参考坐标系和期望姿态坐标系,将该问题转化为绕飞参考坐标系内的XY平面运动和绕期望姿态系Y轴的姿态跟踪控制。通过引入期望相对位置矢量,建立了航天器空间一般相对运动与视线指向的普适模型,并设计了相应控制律。以实现与目标轨道异面的快速圆绕飞视线指向为例进行了数学仿真,仿真中绕飞航天器采用冗余推力器配置,并引入伪逆法实现了控制指令的动态分配。数学仿真结果表明了该方法的正确性。Modeling and control on fast fly-around from any orientation in space and line of sight pointing is researched in this paper.Defining fly-around reference and desired attitude coordinate system,the control problem is transformed to XY plane motion and attitude tracking of rotation around Y axis in desired attitude coordinate system.Through introducing desired relative position vector,the universal model of general relative motion and line of sight pointing is established.And the corresponding control law is designed.The case of noncoplanar fast circular fly-around is simulated,and in the simulation,control commands are distributed dynamically by using the redundant thruster deployment pseudo-inverse algorithm and introducing.The solution is validated through simulation.

关 键 词：快速绕飞 视线指向 建模 期望相对位置矢量 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]