| 经验模式分解方法在水下目标分类中的应用 |
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| 引用本文： | 滕月慧,刘平香,董阳泽.经验模式分解方法在水下目标分类中的应用[J].舰船科学技术,2010,32(3):66-69,124. |
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| 作者姓名： | 滕月慧 刘平香 董阳泽 |
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| 作者单位： | 上海船舶电子设备研究所,上海,201108 |
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| 摘 要： | 针对经验模式分解在水下目标辐射噪声分析时存在的模式混叠问题,提出基于二进滤波的经验模式分解方法,研究了水下目标辐射噪声的分解和特征提取。仿真实验表明,基于二进滤波的经验模式分解方法能很好地抑制模式混叠。最后将该方法应用于海试数据分析,处理结果与直接利用经验模式分解方法相比,识别概率提高了6%,得到比较满意的分类结果。
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| 关 键 词： | 经验模式分解 目标分类 本征模态函数 模式混叠 辐射噪声 |
The application of empirical mode decomposition to underwater targets classification |
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| TENG Yue-hui,LIU Ping-xiang,DONG Yang-ze.The application of empirical mode decomposition to underwater targets classification[J].Ship Science and Technology,2010,32(3):66-69,124. |
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| Authors: | TENG Yue-hui LIU Ping-xiang DONG Yang-ze |
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| Institution: | Shanghai Marine Electronic Equipment Research Institute;Shanghai201108;China |
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| Abstract: | Although empirical mode decomposition can adaptively decompose signal into a small number of intrinsic mode functions according to the local characteristic time scale of the signal,mixing modes will happen in practice when it is used to radiated noise of underwater target.Therefore a kind of Empirical mode decomposition with dyadic-filters is presented in order to get more real Intrinsic mode functions. The method is validated by simulation. After that,the features of the radiated noise from underwater targ... |
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| Keywords: | empirical mode decomposition target classification intrinsic mode function modes mixing radiated noise |
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