SLIDING MODE OBSERVER FOR A CHAOTIC COMMUNICATION SYSTEM: EXPERIMENTAL RESULTS

In this paper, a chaotic secure communication system is electronically realized, using simple and standard electronic components. The communication system is composed of a chaotic transmitter and a receiver. The transmitter is a chaotic Colpitts oscillator, in which the message signal is injected by Inclusion Method. Only one of the states of the transmitter is transmitted to the receiver, which is a sliding mode observer, designed to reconstruct all the states of the transmitter, as well as the message signal. Synchronization of the transmitter and the receiver is practically obtained, and experimental results are presented and commented.