| 细胞神经网络信号传播机制研究 |
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| 引用本文： | 吴建设,张犁.细胞神经网络信号传播机制研究[J].四川大学学报(自然科学版),2005,42(3):498-503. |
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| 作者姓名： | 吴建设 张犁 |
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| 作者单位： | 西安电子科技大学电子工程学院,西安,710071;西安电子科技大学电子工程学院,西安,710071 |
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| 摘 要： | 通过对反符号数值不对称细胞神经网络微分方程的分析，给出了正弦信号在传播时网络参数的条件，及正弦信号在无衰减传播时信号频率与网络参数应满足的关系，推导了传播速度的表达式．基于信号无衰减传播的机制，提出了一种新型的移相器，它具有理想化的特性，通过调节参数可使相移在-π／2和π／2间任意取值，而信号的幅度不发生变化．
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| 关 键 词： | 细胞神经网络 无衰减信号传播 移相器 模拟信号处理 |
| 文章编号： | 0490-6756(2005)03-0498-06 |
A Study of Signal Transmission in Cellular Neural Networks |
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| WU Jian-she,Zhang Li.A Study of Signal Transmission in Cellular Neural Networks[J].Journal of Sichuan University (Natural Science Edition),2005,42(3):498-503. |
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| Authors: | WU Jian-she Zhang Li |
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| Abstract: | The condition which the network parameters should be satisfied for sine wave signal can transmission in opposite-sign value-asymmetric cellular neural networks (CNNs) is present, also the relationship between the signal frequency and the network parameters for signal transmission without attenuation is given through a detailed analysis of the differential equations which describe the CNNs, with the expression of the rate at which the sine wave signal transmit is deduced. A new type of phase-shifter is proposed based on the mechanism of signal transmission in opposite-sign value-asymmetric cellular neural networks without attenuation, which possess the ideal property that the shifted phase of the sine wave signal can be changing between and by tuning the parameters of the CNN with the amplitude unchanged. |
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| Keywords: | cellular neural networks signal transmission without attenuation phase-shifter analog signal processing |
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