| 变型蔡氏电路在微弱信号检测中的应用 |
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| 引用本文： | 刘鹏,谷志刚. 变型蔡氏电路在微弱信号检测中的应用[J]. 应用科技, 2007, 34(5): 24-27 |
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| 作者姓名： | 刘鹏 谷志刚 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 利用混沌理论和方法可以大幅度提高微弱信号检测的精度．该文对产生混沌现象的最简单3阶自治电路-蔡氏电路进行了研究，建立了数学模型，分析了产生混沌的原因，根据建立的数学模型对其进行了仿真研究，并构建了实际的检测电路，仿真结果和电路实验表明，在适当选择参数的情况下，该电路能够出现极为丰富的混沌现象，实际利用该电路可以从噪声中检测出微弱周期信号．
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| 关 键 词： | 混沌 蔡氏电路 双涡卷吸引子 计算机仿真 |
| 文章编号： | 1009-671X（2007）05-0024-04 |
| 收稿时间： | 2006-09-14 |
| 修稿时间： | 2006-09-14 |
Application of modified Chua''''s circuit in weak signal detection |
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| LIU Peng,GU Zhi-gang. Application of modified Chua''''s circuit in weak signal detection[J]. Applied Science and Technology, 2007, 34(5): 24-27 |
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| Authors: | LIU Peng GU Zhi-gang |
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| Abstract: | Chaos theory and method can help improve the precision of weak signal detection considerably.As a nonlinear system that meets the least conditions to emerge chaos,the three-order autonomous Chua's circuit is studied.The mathematic model is built.The reason why chaos appears is analyzed,and the actual detecting established.The simulation and the circuit's experiments show that this kind of circuit can produce abundant chaotic phenomena If the parameters of the circuit are proper.The circuit can detect weak periodic signals from the noise. |
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| Keywords: | chaos Chua circuit double scroll attractor computer simulation |
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