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中文摘要：
利用幅频特性具有凹槽型的反馈信号控制一类时间延迟（或时滞）混沌系统,使其到达周期态.基于延迟系统的Hopf分支理论推算出系统可控性的必要条件.数值模拟及PSPICE仿真平台上的电路实验结果均很好地验证了理论分析的正确性以及该方案控制延迟混沌系统的有效性.
英文摘要：
A scheme, which can be used to control a time -delayed （lagged） chaotic system to a periodic state, is proposed based on the feedback signal with notch amplitude-frequency characteristic. With the theory of Hopf bifurcation of a time-delayed system, the necessary condition to control the system is derived. By the experiments of numerical computation and the circuit simulation on the PSPICE, the validity of theoretic analysis and the efficiency of this scheme to control a time-delayed chaotic system are identified.
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