synchronization

RANDOM DISTANT COUPLINGS INFLUENCE TO A SYSTEM WITH PHASE MULTISTABILITY

We explore the destruction of phase multistability which takes place in an ensemble of period doubling oscillators under the action of long-distance couplings, which appear randomly between the arbitrary cells. The investigation is carried out on the example of a chain of Rossler’s oscillators with periodic boundary conditions, where alongside with local couplings between the elements exist long-range interconnections. The sequence of bifurcations, which accompany increasing of the strength of the global coupling is determined.

THE STUDY OF THE UNIDIRECTIONALLY COUPLED GENERATORS OF ROBUST CHAOS AND WIDE BAND COMMUNICATION SCHEME BASED ON ITS SYNCHRONIZATION

A numerical simulation of a wide band or secure communication scheme, based on nonlinear admixture of an information signal to the chaotic one, and on synchronization of the transmitter and receiver generators, manifesting hyperbolic chaos. Synchronization of the transmitter and receiver is provided by a strong unidirectional coupling between them. The study of the possibility of synchronization between subsystems and functionality of the communication scheme are presented.

SUBHARMONIC RESONANCE IN A SYSTEM OF TWO DISSIPATIVE COUPLED VAN DER POL OSCILLATORS WITH EXTERNAL FORCE

The problem of the excitation of two coupled oscillators is discussed in the case of the simple subharmonic resonance between the external force and eigen-frequencies of the oscillators. The corresponded phase equation is obtained.

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