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对受未知干扰的低轨卫星编队构型保持进行了研究。由完整的非线性星间相对运动动力学方程给出用于控制器设计和稳定性分析的跟踪期望编队构型的误差方程,基于Lyapunov稳定性分析推导了干扰估计律,综合干扰估计律、反馈线性化和最优线性二次型控制器设计了自适应控制器,并证明了该自适应控制方法可保证对期望构型跟踪误差的全局渐近收敛。仿真结果表明:该自适应控制器可实现精确的构型保持,同时完成对未知干扰的估计。
Research on LEO satellite formation formation maintenance by unknown disturbance was studied. The error equations of the tracking formation for the controller design and the stability analysis are given from the complete non-linear system of relative motion between stars. The error estimation law is derived based on the Lyapunov stability analysis, the comprehensive disturbance estimation law, the feedback The adaptive controller is designed by the linear and optimal linear quadratic controller. The adaptive control method is also proved to guarantee the global asymptotic convergence of the tracking error of the desired configuration. The simulation results show that the adaptive controller can achieve accurate configuration retention and estimate the unknown interference at the same time.