Phase synchronization of Chua circuit induced by the periodic signals

摘要

Phase synchronization of chaotic systems induced by periodic signals is studied experimentally and numerically.Three kinds of periodic signals are chosen to drive Chua circuits, including the periodic signal in the Chua circuit,sinusoidal and pulsed signals. Under conditions of small mismatch between the natural frequencies of the periodic and the chaotic signals, appropriate amplitudes of the driving signals, and appropriate duty cycles of the pulse, phase synchronization can be achieved. Even when the duty circle reduces to 3%, it can still drive the chaotic signals into phase synchronization, which is interesting for applications.