Baolong Zhu

Prediction-based sampled-data H∞ controller design for attitude stabilisation of a rigid spacecraft with disturbances

ABSTRACT This paper investigates the H∞ control problem of the attitude stabilisation of a rigid spacecraft with external disturbances using prediction-based sampled-data control strategy. Aiming to achieve a ‘virtual’ closed-loop system, a type of parameterised sampled-data controller is designed by introducing a prediction mechanism. The resultant closed-loop system is equivalent to a hybrid system featured by a continuous-time and an impulsive differential system. By using a time-varying Lyapunov functional, a generalised bounded real lemma (GBRL) is first established for a kind of impulsive differential system. Based on this GBRL and Lyapunov functional approach, a sufficient condition is derived to guarantee the closed-loop system to be asymptotically stable and to achieve a prescribed H∞ performance. In addition, the controller parameter tuning is cast into a convex optimisation problem. Simulation and comparative results are provided to illustrate the effectiveness of the developed control scheme.

A Novel L_2-L_\infty Filtering Strategy for Two Kinds of Network-Based Linear Time-Invariant Systems

This paper proposes a novel filtering strategy characterized by an impulsive differential system. It provides an alternative solution to the problem of

Sampled-data mixed H∞ and passive control for attitude stabilization and vibration suppression of flexible spacecrafts with input delay

L_2-L_\infty

Neighborhood grid clustering and its application in fault diagnosis of satellite power system

L2-L∞ filtering for two kinds of network-based linear time-invariant systems. The presented method highlights two features, “plug and play” and “always feasible,” because it is simple and does not need to solve any complex constrained optimization problems. For measurable and unmeasurable system states, two different filter frameworks are presented, respectively. The proposed filtering strategy could guarantee the asymptotic stability of the filtering error system, while ensuring an

Stability and H∞ performance analysis for a class of impulsive differential systems

L_2-L_\infty

Sampled-data H ∞ control for attitude stabilization and vibration suppression of flexible spacecrafts

L2-L∞ performance. At the same time, the relationship between the