| 基于连续小波变换和分形理论的水下回波特征提取 |
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| 引用本文： | 卜英勇,周木荣.基于连续小波变换和分形理论的水下回波特征提取[J].传感器与微系统,2008,27(11). |
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| 作者姓名： | 卜英勇 周木荣 |
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| 作者单位： | 中南大学机电工程学院,湖南长沙,410083 |
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| 摘 要： | 提出了一种水下回波特征提取方法。该方法利用连续小波变换和分形理论从水下回波包络中提取分形维,并作为水下目标分类的特征矢量。对实测的4类不同沉积物回波数据进行特征提取与分类,结果表明:该方法能可靠地区分不同类别的海底底质类型,具有较高的正确识别率。
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| 关 键 词： | 分形维 小波变换 底质分类 |
Feature extraction of underwater echoes based on continuous wavelet transform and fractal theories |
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| BU Ying-yong,ZHOU Mu-rong.Feature extraction of underwater echoes based on continuous wavelet transform and fractal theories[J].Transducer and Microsystem Technology,2008,27(11). |
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| Authors: | BU Ying-yong ZHOU Mu-rong |
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| Abstract: | A feature extraction method of underwater echoes,which is based on continuous wavelet transform and fractal theories is proposed.The fractal dimension of the underwater echo envelope,which is calculated by this method is taken as the classification feature vectors.The experiment echo data from four types of sediment are processed,and the results show that the method can easily distinguish them,and high recognition rate can be obtained. |
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| Keywords: | fractal dimension continuous wavelet transform seabed discrimination |
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