中国物理B ›› 2005, Vol. 14 ›› Issue (1): 55-60.doi: 10.1088/1009-1963/14/1/012

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Phase synchronization of Chua circuit induced by the periodic signals

王世红, 刘维清, 马宝军, 肖井华, 蒋达娅   

  1. Science School, Beijing University of Posts and Telecommunications,Beijing 100876 China
  • 收稿日期:2004-05-14 修回日期:2004-09-10 出版日期:2005-01-20 发布日期:2005-01-20
  • 基金资助:
    Project supported by the NationalNatural Science Foundation of China (Grant No 10172020)

Phase synchronization of Chua circuit induced by the periodic signals

Wang Shi-Hong (王世红), Liu Wei-Qing (刘维清), Ma Bao-Jun (马宝军), Xiao Jing-Hua (肖井华), Jiang Da-Ya (蒋达娅)   

  1. Science School, Beijing University of Posts and Telecommunications,Beijing 100876 China
  • Received:2004-05-14 Revised:2004-09-10 Online:2005-01-20 Published:2005-01-20
  • Supported by:
    Project supported by the NationalNatural Science Foundation of China (Grant No 10172020)

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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.

关键词: phase synchronization, chaotic oscillator

Abstract: 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.

Key words: phase synchronization, chaotic oscillator

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  • 0545