The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this study, the H-infinity tracking control problem of a linearized hypersonic vehicle model with the bounded external disturbance is investigated. Firstly, the nonlinear longitudinal dynamics of hypersonic vehicle is linearized as a linear time-invariant system with the bounded external disturbance, a reference model is introduced for the aim of tracking control. And then an observer-based output...
Based on adaptive and ℋ∞ control techniques, this paper deals with the problem of active fault-tolerant control for a class of T-S fuzzy systems with actuator faults. The presented approach is dependent on a fuzzy iterative learning observer (ILO), which produces a control input adjustment term in order to compensate for the effect of actuator faults. Based on Lyapunov theorem, a sufficient condition...
Based on the adaptive-control technique, this paper deals with the problem of fault-tolerant tracking control for near-space-vehicle (NSV) attitude dynamics. First, Takagi-Sugeno (T-S) fuzzy models are used to describe the NSV attitude dynamics; then, an actuator-fault model is developed. Next, an adaptive fault-tolerant tracking-control scheme is proposed based on the online estimation of actuator...
Based on fuzzy control technique, the fault-tolerant sliding mode control problem is investigated for near space vehicle (NSV) attitude dynamics in this paper. Firstly, the nonlinear dynamics of NSV is given. Then, T-S fuzzy model for NSV with additive actuator fault is established. The fuzzy sliding surfaces for NSV is designed by using a Lyapunov function, and the fuzzy fault-tolerant sliding mode...
This paper first develops the six degrees of freedom (DOF) nonlinear dynamic model of near space vehicle (NSV) in re-entry trajectory and analyzes its model characteristics and aerodynamic parameters, then the linear model is obtained using trim technique. The problem of fault estimation based on adaptive fault diagnosis observer is studied, which can achieve accurate estimation of fault and give...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.