| 基于分段拟合的舰船噪声线谱特征提取 |
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| 引用本文： | 杨向锋,张效民,庞学亮,梁婷.基于分段拟合的舰船噪声线谱特征提取[J].微处理机,2006,27(4):88-90. |
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| 作者姓名： | 杨向锋 张效民 庞学亮 梁婷 |
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| 作者单位： | 1. 西北工业大学航海学院,西安,710072;西安精密机械研究所,西安,710075
2. 西北工业大学航海学院,西安,710072 |
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| 摘 要： | 提出了一种基于分段拟合的提取舰船噪声信号功率谱中线谱特征的方法。该方法利用分段拟合方法拟合出信号功率谱的连续部分，从原始功率谱中减去连续谱得到拉平的线谱分布，然后进行线谱特征提取。实验证明了该方法的有效性，而且分类效果很好。
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| 关 键 词： | 分段拟合 舰船噪声 线谱特征提取 |
| 文章编号： | 1002-2279（2006）04-0088-03 |
| 收稿时间： | 2005-01-16 |
| 修稿时间： | 2005年1月16日 |
Line-spectrum Extraction of Ship Radiated-noise Based on Part Imitate |
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| YANG Xiang- feng ,ZHANG Xiao- min ,PANG Xue -liang ,et al.Line-spectrum Extraction of Ship Radiated-noise Based on Part Imitate[J].Microprocessors,2006,27(4):88-90. |
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| Authors: | YANG Xiang- feng ZHANG Xiao- min PANG Xue -liang |
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| Abstract: | A new method of line - spectrum extraction of ship radiated - noise based on part imitate was proposed in this paper. The method using the part imitate extract the continuous spectrum of the signal spectrum, than extract line - spectrum from the relatively fiat line - spectrum by subtract it from the former spectrum. The results of experiment show that the method is effective and the classification rate is higher. |
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| Keywords: | Part imitate Ship radiated - noise Line - spectrum extraction |
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