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| 船舶噪声的自适应分离技术 | |
| 引用本文： | 王荣杰,周海峰,詹宜巨.船舶噪声的自适应分离技术[J].中国航海,2011,34(3):10-14,68. |
| 作者姓名： | 王荣杰 周海峰 詹宜巨 |
| 作者单位： | 1. 集美大学轮机工程学院,厦门361021;中山大学信息科学与技术学院,厦门510006 2. 集美大学轮机工程学院,厦门,361021 3. 中山大学工学院,广州,510006 |
| 摘 要： | 针对船舶杂系混合噪声的源数动态估计和分离技术,提出了一种基于盲源分离理论的船舶噪声自适应分离方法.首先采用一种基于交叉验证技术和递归运算相结合的方法来估计动态变化的噪声源数,然后利用峭度选取不同分布噪声的分离矩阵更新规则.四叶螺旋桨的船舶辐射噪声和船舶的杂系混合噪声盲分离的仿真结果表明了该方法的可行性,且它比传统的方法... |
| 关 键 词： | 船舶、舰船工程 船舶噪声 盲源分离 源数估计 超高斯分布 亚高斯分布 |
Adaptive Separation Technology of Ship Noise |
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| Wang Rongjie,Zhou Haifeng,Zhan Yiju.Adaptive Separation Technology of Ship Noise[J].Navigation of China,2011,34(3):10-14,68. | |
| Authors: | Wang Rongjie Zhou Haifeng Zhan Yiju |
| Institution: | Wang Rongjie1,2,Zhou Haifeng1,Zhan Yiju3(1.Marine Engineering Institute,Jimei University,Xiamen 361021,China,2.School of Information Science and Technology,Sun Yatsen University,Guangzhou 510006,3.School of Engineering,China) |
| Abstract: | To dynamically estimate the number of sources from a mix of ship noises and separate them,an adaptive separation method of ship noises are introduced based on blind source separation technology.The variable source number is estimated with the combination of cross validation and recursive calculations and the separation matrix updates according to the noise kurtosis.The simulations which process the mix of radiant noises from a ship with 4 blade propeller prove that the method is practical and performs bette... |
| Keywords: | ship naval engineering ship noise blind source separation estimation of source number super-gaussian sub-gaussian |
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