Fast-switching pulse synchronization of chaotic oscillators

We study pulse synchronization of chaotic systems in master-slave configuration. The slave system is unidirectionally coupled to the master system through an intermittent linear error feedback coupling, whose gain matrix periodically switches among a finite set of constant matrices. Using Lyapunov-stability theory, fast-switching techniques, and the concept of matrix measure, we derive sufficient conditions for global synchronization. The derived conditions are specialized to the case of Chua´s circuits. An inductorless realization of coupled Chua´s circuits is developed to illustrate the effectiveness of the proposed approach.