| 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].宜春学院学报,2007,29(2):17-20,73. |
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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： | 该文采用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,在舰船辐射噪声的建模与仿真条件下,分析对比了不同方法对舰船辐射噪声信号降噪的效果,并分析比较了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： | 1671-380X（2007）02-0017-04 |
| 收稿时间： | 2006-12-11 |
| 修稿时间： | 2006-12-11 |
A Study on the De-noising of the Passive Sonar Based on the Wavelet |
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| LI Feng,WANG Yi,LI Mei-yi.A Study on the De-noising of the Passive Sonar Based on the Wavelet[J].Journal of Yichun University,2007,29(2):17-20,73. |
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| Authors: | LI Feng WANG Yi LI Mei-yi |
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| Institution: | College of Information and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China |
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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,this paper analyzes and compares the effect of de-noising of the passive sonar of ship radiated noise 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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