Resistant to noise chaotic communication scheme exploiting the regime of generalized synchronization

Abstract

We develop a chaotic communication system exploiting the regime of generalized synchronization between the transmitter and receiver. Two variants of communication scheme are considered. The first of them contains only one self-oscillating response system in the receiver, which is driven in turn by the signal from the drive system and delayed copy of this signal. In the second variant of the scheme, the receiver is composed of two response systems, but these systems could be nonidentical in contrast to the classical communication schemes based on the generalized synchronization. The efficiency of the proposed scheme is shown for the case, where the transmitter and receiver are constructed using time-delayed feedback oscillators. The communication scheme is studied numerically and realized in the physical experiment. It is shown that the proposed scheme possesses high tolerance to noise in the communication channel.