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考虑处于深空中的航天器网络编队的位置和姿态控制。控制目标是使整个编队中的航天器在控制器的作用下达到期望的位置和姿态,同时航天器编队趋于期望的队形和期望的相对姿态。采用基于图论的方法设计控制器,得到的控制器仅仅要求相邻的航天器之间保持信息交换,从而,和已有的研究中要求设计航天器两两通信的控制器相比,减少了整个航天器网络内部航天器间的通信;另外,得到的控制器不要求相邻航天器的速度和加速度的测量,从而减少了测量所带来的累积误差。数值仿真结果验证了控制策略的有效性。
Consider the position and attitude control of a spacecraft network formation in deep space. The goal of control is to bring the spacecraft in the entire fleet to the desired position and attitude under the control of the controller while the spacecraft formation tends to the desired formation and desired relative attitude. The controller is designed based on graph theory. The controller only needs to maintain the information exchange between adjacent spacecraft. Therefore, compared with the existing controller which requires the design of spacecraft communication, In addition, the obtained controller does not require the measurement of the speed and acceleration of the adjacent spacecraft, thus reducing the cumulative error caused by the measurement. Numerical simulation results verify the effectiveness of the control strategy.