基于特征根有界摄动分析的高超声速飞行器双通道控制

针对双通道控制高超声速飞行器横侧向欠驱动、强不确定性的特点，研究了适用于工程应用的控制策略，提出一种基于特征根有界摄动分析的反馈控制鲁棒性分析方法。基于线性化近似分析和工程约束需求，给出了双通道飞行器改善荷兰滚模态动态的2种控制策略，分别为极点配置方案和模态解耦方案。提出了特征根灵敏度矩阵和有界摄动矩阵的概念，用于评估闭环系统对参数不确定的鲁棒性。基于闭环六自由度模型在标称及参数拉偏情况下，对2种方案进行了综合分析和仿真验证。仿真结果表明，2种控制方案均可以解决双通道控制问题，所提特征根有界摄动分析方法可准确评估系统的鲁棒性。 

Dual-channel control of hypersonic flight vehicles based on bounded perturbation analysis of eigenvalues

Considering the underactuated hypersonic flight vehicles with strong uncertainty of the dual channel attitude control strategy, practical feedback-based dual-channel control schemes are given and the robustness analysis method based on the bounded perturbation analysis of eigenvalues is proposed. Firstly, two control schemes, namely the pole-assignment schemes and modes-decoupling scheme, are given to improve Dutch roll dynamics based on the approximate linearization approach and engineering constraints. Then, to evaluate the robustness of the closed-loop system for the uncertain parameters, the eigenvalue sensitivity matrix, the eigenvalue bounded-perturbation-matrix and eigenvalue bounded-perturbation index are proposed. Finally, simulations and analysis of the proposed schemes and methods are given based on the closed-loop six degree-of-freedom model with nominal parameters and perturbed parameters, respectively. Simulation results demonstrate that both schemes could solve the dual-channel control issue. The results also show that the perturbation analysis of eigenvalues could precisely evaluate the system robustness.