| 交流耦合蔡氏电路的计算机仿真研究 |
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| 引用本文： | 乔闪,齐恒. 交流耦合蔡氏电路的计算机仿真研究[J]. 计算机仿真, 2006, 23(5): 107-109,275 |
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| 作者姓名： | 乔闪 齐恒 |
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| 作者单位： | 浙江大学城市学院信息工程系,浙江,杭州,310015;浙江大学信息与电子工程系,浙江,杭州,310027 |
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| 摘 要： | 该文用计算机仿真的方法分析了采用电容交流耦合的非线性负阻对蔡氏电路混沌特性的影响，其结果验证了当耦合电容相对振荡频率足够大时，该电容的加入对蔡氏电路的混沌特性影响不大。采用交流耦合后，利用高频电路实现的各类等效负阻器件得以在蔡氏电路中应用，因而可以获得工作在更高频段的混沌振荡。作为应用实例，该文给出了一个采用标准偏置隧道二极管实现的、混沌带宽达到数百兆赫兹的混沌电路。该电路可以用于宽带载波通信电路中。
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| 关 键 词： | 蔡氏电路 混沌 耦合 |
| 文章编号： | 1006-9348（2006）05-0107-03 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2004-11-15 |
Computer Simulation on AC coupled Chua's Circuit |
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| QIAO Shan,QI Heng. Computer Simulation on AC coupled Chua's Circuit[J]. Computer Simulation, 2006, 23(5): 107-109,275 |
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| Authors: | QIAO Shan QI Heng |
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| Affiliation: | 1. Department of Information and Electronic Engineering, Zhejiang University, Hangzhou Zhejiang 310027, China; 2. Department of Information Engineering, Zhejiang University City College, Hangzhou Zhejiang 310015 ,China |
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| Abstract: | In this paper,a capacitance AC-coupled Chua's circuit is presented and analyzed using computer simulation.The results verify that the additional capacitance affects little to the original Chua's circuit when it has a comparatively large capacitance volume with respect to the effective oscillation frequency.After doing this,various high-speed negative resistance devices and/or circuits can be used to replace the op amp based narrow band Chua's diode and therefore,higher chaotic oscillation can be obtained.As an application example,a tunnel diode based Chua's circuit with standard DC bias is given,whose spectrum of chaotic signal has reached hundreds of megahertz.This circuit can be used in the communication circuit based on wide-bandwidth carrier. |
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| Keywords: | Chuag circuit Chaos Coupling |
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