| 船舶辐射噪声的多重分形特性分析 |
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| 引用本文： | 周越,杨杰.船舶辐射噪声的多重分形特性分析[J].数据采集与处理,2001,16(4):403-407. |
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| 作者姓名： | 周越 杨杰 |
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| 作者单位： | 上海交通大学图像处理与模式识别研究所, |
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| 基金项目： | "九五"国防重点预研基金(3B1.4.1②)资助项目. |
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| 摘 要： | 介绍了多重分形维数分布的概念和快速算法,并着重研究了船舶辐射噪声的多重分形分布特征。经研究发现,其多重分形分布特征不仅仅与辐射噪声的传播有关,而且与测量时的工况有着密切的关系。这一结论对应用多重分形分布进行船舶噪声的检测与识别具有重要的意义。
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| 关 键 词： | 船舶 辐射噪声 多重分形分布 混沌理论 小波变换 |
| 文章编号： | 1004-9037(2001)04-0403-05 |
| 修稿时间： | 2000年11月30 |
Multifractal Analysis of Ship Radiated-Noise |
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| Zhou Yue Yang Jie Institute of Image Processing and Pattern Recognition,Shanghai Jiaotong University Shanghai ,P.R.China.Multifractal Analysis of Ship Radiated-Noise[J].Journal of Data Acquisition & Processing,2001,16(4):403-407. |
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| Authors: | Zhou Yue Yang Jie Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University Shanghai PRChina |
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| Affiliation: | Zhou Yue Yang Jie Institute of Image Processing and Pattern Recognition,Shanghai Jiaotong University Shanghai 200030,P.R.China |
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| Abstract: | The ship radiated noise is researched by the multifractal analysis. In the research, the multifractal distribution of the ship radiated noise is not only related to the noise itself, but also related to the work condition of the ship, for example, speed of the ship and the vertical distance. On the other hand, the value of the multifraction of the sea noise is larger than that of the ship radiated noise and this rule is discovered, and is interpreted by the fBm model. This discovery is very useful to detection and classification of the ship radiated noise. |
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| Keywords: | ship radiated noise distribution of multifraction work condition |
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