| 基于小波的被动声纳降噪研究 |
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| 引用本文： | 李峰,王毅,李枚毅.基于小波的被动声纳降噪研究[J].华东地质学院学报,2007,30(4):378-382. |
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| 作者姓名： | 李峰 王毅 李枚毅 |
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| 作者单位： | 湘潭大学信息工程学院 湖南湘潭411105 |
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| 摘 要： | 基于小波的降噪理论,研究了水下舰船辐射噪声的被动声纳降噪问题。通过对船辐射噪声的建模和仿真,分析对比了不同方法对舰船辐射噪声信号降噪的效果,并利用各种小波基和采用不同阈值条件下对信号进行降噪处理的效果。该研究在分析对比的基础上,进行小波包软阈值去噪并且取得了较好的效果,对被动声纳降噪提供了较好的应用前景。
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| 关 键 词： | 舰船辐射噪声 被动声纳 小波降噪 |
| 文章编号： | 1000-2251（2007）04-0378-05 |
| 收稿时间： | 2006-12-14 |
Study on the De-noising of the Passive Sonar Based on the Wavelet |
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| LI Feng,WANG Yi,LI Mei-yi.Study on the De-noising of the Passive Sonar Based on the Wavelet[J].Journal of East China Geological Institute,2007,30(4):378-382. |
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| Authors: | LI Feng WANG Yi LI Mei-yi |
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| Abstract: | This paper focuses on the research of the de-noising of the passive sonar based on the wavelet.Based on the modeling and simulation of the ship radiated noise,the effect of de-noising of the passive sonar of ship radiated noise are analyzed and compared in different ways and means,in different kinds of wavelet basis and in wavelet package including different kinds of threshold.It is shown that better de-noising effect are achieved by using the wavelet package soft threshold method.These methods have a significant foreground in de-noising of passive sonar. |
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| Keywords: | ship radiated noise passive sonar De-noising based on the wavelet |
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