| 混沌干扰下的随机共振研究 |
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| 引用本文： | 倪强,李健,方秀宁,向林.混沌干扰下的随机共振研究[J].四川理工学院学报(自然科学版),2011,24(5):522-525. |
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| 作者姓名： | 倪强 李健 方秀宁 向林 |
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| 作者单位： | 四川大学电子信息学院,成都,610064 |
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| 基金项目： | 四川省应用基础研究项目，西南交通大学信息编码与传输四川省重点实验室开放研究基金 |
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| 摘 要： | 利用随机共振现象可以实现弱信号检测,目前大量的研究是在白噪声或色噪声背景下进行的,对于混沌干扰下的随机共振的研究却很少。研究了混沌背景干扰下的信号检测,发现在混沌干扰下双稳系统也会发生随机共振现象,因此可以检测出淹没在混沌干扰中的信号;在混沌与噪声同时存在的混合背景下,随机共振现象仍然存在,混合背景可以发生与单一噪声背景类似的随机共振现象。
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| 关 键 词： | 信号检测 随机共振 混沌 混合背景 |
Studying on Stochastic Resonance under Chaotic Interference |
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| NI Qiang,LI Jian,FANG Xiu-ning,XIANG Lin.Studying on Stochastic Resonance under Chaotic Interference[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2011,24(5):522-525. |
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| Authors: | NI Qiang LI Jian FANG Xiu-ning XIANG Lin |
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| Affiliation: | 1(1.School of Electronic and Information,Sichuan University,Chengdu 610064,China; 2.Information Coding and Transmission of Key Laboratory in Sichuan Province,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | As to signal detection using stochastic resonance（SR）,large quantity of literatures focus on the detection of signal which is drowned in white noise or colored noise,but the detection based on stochastic resonance（SR）under chaotic interference is rarely discussed.The signal detection under the chaotic background interference based on stochastic resonance is studied,found that the stochastic resonance can also be generated in the bi-stable system when the interference is chaos,so the signal can be detected out.When the chaotic interference and noise exist simultaneously,stochastic resonance which is similar to single noise background still occur. |
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| Keywords: | signal detection stochastic resonance chaos mixed background |
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