A Type of Delay Feedback Control of Chaotic Dynamics in a Chaotic Neural Network
A Type of Delay Feedback Control of Chaotic Dynamics in a Chaotic Neural Network
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发表时间：
2004-07
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通讯作者：
Guoguang He;J. Kuroiwa;H. Ogura;Ping Zhu;Z. Cao;Hongping Chen
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作者：
Guoguang He;J. Kuroiwa;H. Ogura;Ping Zhu;Z. Cao;Hongping Chen
由混沌神经元组成的混沌神经网络具有非周期联想记忆等丰富的动力学行为。但是，由于混沌神经网络在存储的模式周围表现出混沌徘徊，因此很难将存储的模式与其他模式区分开来。为了将非周期联想记忆应用于信息搜索或模式识别，需要对混沌动力学进行控制。提出了一种混沌神经网络的延迟反馈控制方法。计算机仿真表明，该控制方法改变了混沌神经网络的混沌动力学特性。受控网络的输出序列在一个存储模式及其反向模式周围徘徊。
SUMMARY A chaotic neural network consisting of chaotic neurons exhibits such rich dynamical behaviors as nonperiodic associative memory. But it is difficult to distinguish the stored patterns from others, since the chaotic neural network shows chaotic wandering around the stored patterns. In order to apply the nonperiodic associative memory to information search or pattern identification, it is necessary to control chaotic dynamics. In this paper, we propose a delay feedback control method for the chaotic neural network. Computer simulation shows that, by means of the control method, the chaotic dynamics in the chaotic neural network are changed. The output sequence of the controlled network wanders around one stored pattern and its reverse pattern.