Practical stability of impulsive synchronization between two nonautonomouschaotic systems

The practical stability of impulsive synchronization between two nonautonom ous chaotic systems is studied in this paper, and this is equivalent to tha t of the origin of the synchronization error system, which is modeled by an impulsive differential equation. We develop theoretical methods of choosin g the time interval between two successive synchronization impulses and str engths of synchronization impulses for restricting synchronization errors w ithin prescribed regions around the origin. Numerical experimental results are given to demonstrate theoretical results.