| 混沌振子在强噪声背景下正弦信号的检测研究 |
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| 引用本文： | 张贵平,贾鑫,潘显俊. 混沌振子在强噪声背景下正弦信号的检测研究[J]. 装备指挥技术学院学报, 2008, 19(4): 90-93. DOI: 10.3783/j.issn.1673-0127.2008.04.022 |
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| 作者姓名： | 张贵平 贾鑫 潘显俊 |
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| 作者单位： | 1. 装备指挥技术学院,研究生管理大队,北京,101416
2. 装备指挥技术学院,光电装备系,北京,101416 |
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| 摘 要： | 分析了基于Duffing方程形成的混沌振子的运动特性，阐述了利用混沌振子检测强噪声背景下正弦信号的原理：利用混沌振子对与策动力频率相近的正弦信号的敏感性，及对噪声和与策动力的频差较大的正弦信号的免疫性来检测淹没在强噪声中的正弦信号。给出了判断是否存在有用信号的方法，并用仿真实验验证了利用混沌振子检测微弱正弦信号的可行性和有效性。
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| 关 键 词： | 混沌振子 大周期 正弦信号 强噪声 检测 |
Detecting Sine Signal in the Background of Strong Noise with Chaotic Oscillator |
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| ZHANG Guiping,JIA Xin,PAN Xianjun. Detecting Sine Signal in the Background of Strong Noise with Chaotic Oscillator[J]. Journal of the Academy of Equipment Command & Technology, 2008, 19(4): 90-93. DOI: 10.3783/j.issn.1673-0127.2008.04.022 |
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| Authors: | ZHANG Guiping JIA Xin PAN Xianjun |
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| Affiliation: | ZHANG Guiping, JIA Xin, PAN Xianjun(1. Department of Postgraduate Management, the Academy of Equipment Command ＆ Technology, Beijing 101416, China;2. Department of Optimal and Electrical Equipment, the Academy of Equipment Command ＆ Technology, Beijing 101416, China) |
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| Abstract: | The paper analyzes the movement of chaotic oscillator according to the equation of Duffing, and describes the principle of detecting sine signal submerged in the background of strong noise： detecting sine signal by making use of the sensitivity of chaotic oscillator to the sine signal whose frequency is close to the driving signal, and the immunity to the noise and the signal whose frequency is quite different ftom the driving signal. The paper provides the methods of detecting useful signals. The simulation experiment proves the feasibility and validity of detecting the weak sine signal with chaotic oscillator. |
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| Keywords: | chaotic oscillator big cycle sine signal strong noise detect |
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