论文标题
通用抛弃车辆大气飞行动力学的LPV建模
LPV Modeling of the Atmospheric Flight Dynamics of a Generic Parafoil Return Vehicle
论文作者
论文摘要
获得可用于控制的模型对于确保航天器的指导和导航至关重要，例如通用的抛弃返回车辆（GPRV）。在本文中，我们将GPRV大气飞行动力学的非线性模型转换为线性参数变化（LPV）的描述，因此LPV模型适合导航控制设计。非线性模型的自动转换方法可能会导致复杂的LPV表示，这不适合控制器合成。我们应用了几种最新技术，包括基于学习的方法，以优化GPRV嵌入LPV的复杂性和保守性。结果表明，我们可以获得嵌入的LPV嵌入，该LPV足够好，在复杂性，保守主义和模型性能之间的平衡是最佳的。
Obtaining models that can be used for control is of utmost importance to ensure the guidance and navigation of spacecraft, like a Generic Parafoil Return Vehicle (GPRV). In this paper, we convert a nonlinear model of the atmospheric flight dynamics of an GPRV to a Linear Parameter-Varying (LPV) description, such that the LPV model is suitable for navigation control design. Automated conversion methods for nonlinear models can result in complex LPV representation, which are not suitable for controller synthesis. We apply several state-of-the-art techniques, including learning based approaches, to optimize the complexity and conservatism of the LPV embedding for an GPRV. The results show that we can obtain an LPV embedding that approximates the complex nonlinear dynamics sufficiently well, where the balance between complexity, conservatism and model performance is optimal.
