[1]Bu Yingyong,ZHANG Chao,Nie Shuangshuang.Underwater echo signal wake envelope feature extraction based on discrete wavelet transform[J].Journal of Zhengzhou University (Engineering Science),2007,28(04):80-83.[doi:10.3969/j.issn.1671-6833.2007.04.020]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
28卷
Number of periods:
2007年04期
Page number:
80-83
Column:
Public date:
1900-01-01
- Title:
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Underwater echo signal wake envelope feature extraction based on discrete wavelet transform
- Author(s):
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Bu Yingyong; ZHANG Chao; Nie Shuangshuang
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- Keywords:
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wavelet transform; Wake; Envelope features; Target classification
- CLC:
-
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- DOI:
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10.3969/j.issn.1671-6833.2007.04.020
- Abstract:
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A feature extraction method for underwater target echoes is proposed. Based on the discrete wavelet transform, this method can classify the underwater substrate based on the scattering components in the echo signal, extract the underwater echo signal wake envelope feature as the identification feature vector, constitute the feature space based on the wake envelope feature, and then use the best identification vector method to compress the feature space, and finally use the minimum distance classifier to classify the target echo. The measured data show that the envelope feature obtained by this method is a robust and effective feature, which can obtain a high correct recognition rate.