| 王锋,尹力,朱明洪.基于Hilbert-Huang变换的水声信号特征提取及分类技术[J].,2007,26(4):223-230 |
| 基于Hilbert-Huang变换的水声信号特征提取及分类技术 |
| Feature extraction and classification of underwater signals based on Hilbert-Huang transform |
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| 中文摘要: |
| 水下目标噪声信号是一种典型的非线性非平稳随机信号,Hilbert-Huang变换较传统方法在处理此类信号时具有很大优势,据此本文提出了一种基于Hilbert-Huang变换的水下目标噪声特征提取方法．本文将环境噪声当作一类目标,利用上述方法对涉及两种航行船舶、海洋生物和海洋环境噪声的四类目标信号的特征进行了详细分析,最后对各类目标噪声信号进行了分类识别实验．实验结果表明基于Hilbert-Huang变换提取的特征对各类目标具有较好的可分性,达到了较高的识别率． |
| 英文摘要: |
| Noise radiated from underwater targets is a typical nonlinear and non-stationary signal.Hilbert-Huang Transform is a good method of analyzing this kind of signals com- pared to other traditional methods.Based on this method,a new feature extraction method is proposed in this paper.The targets are divided into four types:cargo ship, fishing boat,marine life and sea noise,and their characteristics are described.Experi- ments on actual noises of underwater targets are carried out,and the results illustrate the method is effective. |
| DOI：10.11684/j.issn.1000-310X.2007.04.007 |
| 中文关键词: Hilbert-Huang变换 水下目标 特征提取 分类 |
| 英文关键词: Hilbert-Huang transform Underwater targets Feature extraction Classification |
| 基金项目: |
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