Abstract

This study investigates the longitudinal flight control problem of air-breathing hypersonic vehicles subject to the asymmetric angle of attack (AoA) constraint. With the help of introduced tangent errors, the proposed control becomes low complexity in both structure and expression, especially for the non-adaptive control algorithm in the altitude loop. The asymmetric AoA constraint, which is more practical in comparison with the previously considered symmetric AoA constraint, is well accommodated. Output tracking errors are regulated into small residual sets within the designated convergence time. Uncertain aerodynamic coefficients, structural flexibilities and scramjet input saturation are synthetically handled, making the proposed control competent for a real hypersonic flight mission.

中文翻译：

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具有非对称迎角约束的低复杂度超音速飞行控制

摘要

这项研究调查了不对称迎角（AoA）约束下的呼吸高超音速飞行器的纵向飞行控制问题。借助于引入的切线误差，所提出的控制在结构和表达上都变得较低的复杂性，尤其是对于高度环中的非自适应控制算法而言。与以前考虑的对称AoA约束相比更加实用的非对称AoA约束得到了很好的适应。在指定的收敛时间内，将输出跟踪误差调整为小的残差集。不确定的空气动力学系数，结构灵活性和超燃冲压发动机输入饱和度得到综合处理，从而使拟议的控制胜任实际的超音速飞行任务。