| 舰船辐射噪声的混沌特征提取与识别 |
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| 引用本文： | 沙莎,张效民,姚运启.舰船辐射噪声的混沌特征提取与识别[J].电声技术,2011,35(8):66-68. |
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| 作者姓名： | 沙莎 张效民 姚运启 |
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| 作者单位： | 西北工业大学航海学院,陕西西安,710072 |
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| 摘 要： | 利用G-P方法估计关联维数,定义法估计自然测度.在不同信噪比下,对两类典型目标的舰船辐射噪声,分新并提取以上2个混沌特征值,从而确定识别参数.在信噪比为5dB及0dB时,经仿真验证关联维数及自然测度可以作为识别参数.
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| 关 键 词： | 混沌 舰船辐射噪声 特征提取 识别 |
Chaotic Feature Extraction and Recognition of Ship-radiated Noise |
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| SHA Sha,ZHANG Xiaomin,YAO Yunqi.Chaotic Feature Extraction and Recognition of Ship-radiated Noise[J].Audio Engineering,2011,35(8):66-68. |
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| Authors: | SHA Sha ZHANG Xiaomin YAO Yunqi |
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| Institution: | SHA Sha,ZHANG Xiaomin,YAO Yunqi(College of Marine,Northwestern Polytechnical University,Xi an 710072,China) |
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| Abstract: | G-P is applied to estimate correlation dimension and the definition is used to estimate natural measure.The recognition parameters are determined by studying these two chaotic characteristics of typical target ship-radiated noise in different signal to noise ratio.The simulation in the signal to noise ratio of 5 dB and 0 dB proves that correlation dimension and natural measure can be selected as the identification parameters. |
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| Keywords: | chaos ship-radiated noise feature extraction recognition |
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