| 噪声诱导下单热敏神经元信号检测 |
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| 引用本文： | 王道光,朱春旭,吕华平.噪声诱导下单热敏神经元信号检测[J].徐州师范大学学报(自然科学版),2010,28(2):43-47. |
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| 作者姓名： | 王道光 朱春旭 吕华平 |
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| 作者单位： | 徐州师范大学,物理与电子工程学院,江苏,徐州,221116 |
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| 摘 要： | 利用热敏神经元动作电位发放图、ISI分叉图、功率谱密度(PSD)等,系统地研究了单热敏神经元在噪声诱导下的随机共振现象.通过对比分析发现分岔周期数为1或者2的情况下,存在一最优输入信号频率fopt,使得神经元输出信噪比(rSNR)最高.不同噪声强度D下,热敏神经元对输人信号检测能力各异,低噪声强度下检测能力较好.
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| 关 键 词： | 随机共振 热敏神经元 噪声 信噪比 |
Noise-induced signal detection for a single thermally sensitive neuron |
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| WANG Daoguang,ZHU Chunxu,L Huaping.Noise-induced signal detection for a single thermally sensitive neuron[J].Journal of Xuzhou Normal University(Natural Science Edition),2010,28(2):43-47. |
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| Authors: | WANG Daoguang ZHU Chunxu L Huaping |
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| Institution: | WANG Daoguang,ZHU Chunxu,L(U) Huaping |
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| Abstract: | The phenomenon of noise-induced stochastic resonance(SR)in a single thermally senstive neuron system has been studied with methods of action potential,inter spike interval(ISI)and power spectrum destiny(PSD).After comparing,it is found that there exists such an optimal input frequency fopt that can generate the maximal signal-to-noise ratio(rSNR)while the ISI bifurcation graph is period-1 or period-2.Under different noise intensity D,the thermal neuron takes on varied looks for the detecting ability. |
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| Keywords: | stochastic resonance thermally sensitive neuron noise signal-to-noise ratio |
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