Synchronization of Time-Delay Chaotic System in Presence of Noise

Abstract

Chaotic synchronization, as a key technique of chaotic secure communication, has received much attention in recent years. This paper proposes a nonlinear synchronization scheme for the time-delay chaotic system in the presence of noise. In this scheme, an integrator is introduced to suppress the influence of channel noise in the synchronization process. The experimental results demonstrate the effectiveness and feasibility of the proposed scheme which is strongly robust against noises, especially the high-frequency noises.

A comparative analysis on synchronization of two general class of chaotic systems using non-linear feedback control and feedback linearization techniques

“…In [19], an observer based (with time delay) fuzzy stochastic system for chaos synchronization along with asymptotic mean square stability is analyzed. Likewise, in [20], Nonlinear synchronization scheme is presented for the time delay chaotic systems which is also having channel noise, an integrator is used for suppressing the effect of channel noise. Using complex modified projection synchronisation (CMPS), a time delay complicated Chen chaotic system with parameter change and time delay factors is investigated in [21], and the strategy is implemented to a wireless body area network (WBAN) to encrypt and decode body data acquired by sensors.…”

Pinning synchronization for a class of chaotic complex networks with H∞performance

“…There are always a variety of interference factors in practical applications, due to interior parametric uncertainties, perturbations and noises caused by environment there are some works in the field of synchronization of complex networks with uncertainty [14][15][16][17][18][19][20][21] . In fact, signals transmitted between subsystems of complex networks are unavoidably subject to external interference from environment.…”

“…Reference [14] investigates the disturbance rejection problem by H control, but only considers a class of linear complex dynamical networks. The synchronization phenomenon in time-delay complex networks with disturbance is studied in references [15][16][17][18].In Reference [19], each node in the network is attached to an observer and a controller to achieve robust H synchronization. However, in all above references [15][16][17][18][19], the controllers are added to each node.…”