| 基于混沌振子的微弱信号检测 |
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| 引用本文： | 姜毅,林宗兵. 基于混沌振子的微弱信号检测[J]. 河池师专学报, 2008, 0(5): 62-65 |
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| 作者姓名： | 姜毅 林宗兵 |
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| 作者单位： | 攀枝花学院计算机学院,四川攀枝花617000 |
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| 摘 要： | 分析Duffing振子的混沌特性及其检测原理，阐述基于相平面变化进行微弱信号的检测原理。利用MATLAB仿真的结果表明，Duffing振子对与周期策动力频率差较小的周期信号敏感，对纯噪声和频率较大的周期干扰信号具有免疫力。该振子应用于对已知频率的微弱信号的检测是可行的，并且有效、简单、便于应用。
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| 关 键 词： | 微弱信号 Duffing振子 检测 |
Weak Signal Detection Based on Chaotic Oscillator |
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| JIANG Yi,LIN Zong-bing. Weak Signal Detection Based on Chaotic Oscillator[J]. Journal of Hechi Normal College, 2008, 0(5): 62-65 |
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| Authors: | JIANG Yi LIN Zong-bing |
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| Affiliation: | ( College of Computer Science, Panzhihua University, Panzhihua, Sichuan 617000, China) |
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| Abstract: | In this paper, the chaotic character of Duffing oscillator is analyzed and the principle of weak signal detection based on the change of phase trace is described. Simulation experiments show that the oscillator is sensitive to the small signal haying the tiny frequency difference with the referential signal and immune against the random noise and interference signal having larger frequency difference with the referential signal. In addition, the simulation results based on MATLAB are given. The theory and simulation experiment show that the method above has many advantages such as feasible, simple, effective and easy to apply. |
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| Keywords: | weak signal duffing oscillator detection |
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