共 62 条
Chaotic dynamics in a neural network under electromagnetic radiation
被引:81
作者:
Hu, Xiaoyu
[1
]
Liu, Chongxin
[1
]
Liu, Ling
[1
]
Ni, Junkang
[1
]
Yao, Yapeng
[1
]
机构:
[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shaanxi, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Neural network;
Hidden attractors;
Multistability;
Transient chaos;
Electromagnetic radiation;
Electronic circuit implementation;
ELECTRICAL-ACTIVITY;
NEURONS;
MODEL;
HYPERCHAOS;
BRAIN;
IMPLEMENTATION;
BIFURCATION;
OSCILLATOR;
TRANSITION;
INDUCTION;
D O I:
10.1007/s11071-017-3963-6
中图分类号:
TH [机械、仪表工业];
学科分类号:
0802 ;
摘要:
In this paper, a small Hopfield neural network with three neurons is studied, in which one of the three neurons is considered to be exposed to electromagnetic radiation. The effect of electromagnetic radiation is modeled and considered as magnetic flux across membrane of the neuron, which contributes to the formation of membrane potential, and a feedback with a memristive type is used to describe coupling between magnetic flux and membrane potential. With the electromagnetic radiation being considered, the previous steady neural network can present abundant chaotic dynamics. It is found that hidden attractors can be observed in the neural network under different conditions. Moreover, periodic motion and chaotic motion appear intermittently with variations in some system parameters. Particularly, coexistence of periodic attractor, quasiperiodic attractor, and chaotic strange attractor, coexistence of bifurcation modes and transient chaos can be observed. In addition, an electric circuit of the neural network is implemented in Pspice, and the experimental results agree well with the numerical ones.
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页码:1541 / 1554
页数:14
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