基于自抗扰控制的2个耦合神经元间的混沌同步

针对电缆神经元模型,利用自抗扰控制技术,研究并实现了通过间隙耦合的2个神经元间的混沌同步.未加入控制器时,混沌同步只有当神经元间的耦合强度较大时才会出现.然而在神经元系统中,此条件并不总是得以满足.为此采用自抗扰控制技术来实现混沌同步而不需要考虑耦合强度的大小.此方法不要求精确的神经元模型,而且不要求状态可测,对于外界扰动具有很强的鲁棒性.仿真结果证明所提方法是有效的.

Chaos Synchronization of Two Coupled Neurons via Active Disturbance Rejection Control

The chaos synchronization of two gap junction coupled neurons via active disturbance rejection con- trol （ADRC） was investigated and achieved for the model of the nonlinear cable neuron. When the controller is not used, the synchronization will occur only if the coupling strength of gap junction is relatively big. But in the coupled neuron system, the condition can not always be satisfied. So in this paper, the chaos synchronization is achieved by adopting the active disturbance rejection control technique without considering the coupling strength of gap junction. This method does not require precise neural model nor measurable states, and it is robust to the external disturbance. Simulation results show that the proposed method is effective.