Back-Stepping Control for Flexible Air-Breathing Hypersonic Vehicles Based on Uncertainty and Disturbance Estimator

• 作者: Ao Zhang Dong Zhang Lin Cao
• 来源期刊: 北京理工大学学报（英文版）
• 学科: 航空航天
• 年，卷（期）: 2020,（4）
• 页码范围: 504-513
• 页数: 10页
• 分类号: V412.4
• 语种: 英文
• DOI: 10.15918/j.jbit1004-0579.20001

摘要

A theoretical framework of nonlinear flight control for a flexible air-breathing hyperson-ic vehicle(FAHV) is proposed in this paper. In order to suppress the system uncertainty and ex-ternal disturbance, an uncertainty and disturbance estimator(UDE) based back-stepping control strategy is designed for a dynamic state-feedback controller to provide stable velocity and altitude tracking. Firstly, the longitudinal dynamics of FAHV is simplified into a closure loop form with lumped uncertainty and disturbance. Then the UDE is applied to estimate the lumped uncertainty and disturbance for the purpose of control input compensation. While a nonlinear tracking differen-tiator is introduced to solve the problem of"explosion of term"in the back-stepping control. The stability of the UDE-based control strategy is proved by using Lyapunov stability theorem. Finally, simulation results are presented to demonstrate the capacity of the proposed control strategy.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Lin Cao		1	0	0.0	0.0
2	Dong Zhang		1	0	0.0	0.0
3	Ao Zhang		1	0	0.0	0.0