Finite-time stabilization of nonlinear time-varying systems involving impulsive action

This article investigates the finite -time stabilization of time -varying impulsive systems by timevarying feedback control. Moreover, the stabilizing and destabilizing effects of impulses on the stability of the system are considered, where the stabilizing impulses are used to regulate the unstable continuous dynamics. In addition, it can be found that the local and global characteristics of the finite -time stability may be affected by the stabilizing impulses. By establishing the relationship among the time -varying gain functions, the system structure and impulsive time sequences, some sufficient conditions for finite -time stability of time -varying systems involving impulsive action are proposed. Furthermore, based on the results mentioned above, a new class of finite -time controllers is designed for time -varying affine systems with external noises. The effectiveness of the proposed results is illustrated by three examples.