| 基于模型匹配的舰船螺旋桨噪声特征精细分析 |
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| 引用本文： | 史广智, 胡均川, 笪良龙. 基于模型匹配的舰船螺旋桨噪声特征精细分析[J]. 声学学报, 2009, 34(5): 401-407. DOI: 10.15949/j.cnki.0371-0025.2009.05.009 |
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| 作者姓名： | 史广智 胡均川 笪良龙 |
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| 作者单位： | 1.海军潜艇学院 青岛 266071 |
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| 基金项目： | 国家"十一五"预研基金 |
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| 摘 要： | 在双螺旋桨舰船噪声包络建模的基础上,研究了双桨目标调制谱谐波族特征的结构问题,并对海试中发现的
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| 收稿时间： | 2008-07-22 |
| 修稿时间： | 2008-11-28 |
Feature fine analysis of noise radiated from ship propeller based on model matching |
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| SHI Guangzhi, HU Junchuan, DA Lianglong. Feature fine analysis of noise radiated from ship propeller based on model matching[J]. ACTA ACUSTICA, 2009, 34(5): 401-407. DOI: 10.15949/j.cnki.0371-0025.2009.05.009 |
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| Authors: | SHI Guangzhi HU Junchuan DA Lianglong |
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| Affiliation: | 1.Navy Submarine Academy Qingdao 266071 |
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| Abstract: | The structure question about feature of harmonic clan for demodulation-spectrum was studied by using the envelope model of noise radiated from double propeller. The pseudo-propeller phenomenon discovered in a sea test was analysed, and structural aberration of harmonic clan was explained theoretically. Moreover, the fine analysis method of propeller noise feature was investigated by using the model-based technology, and the fine structural feature of envelope waveform was obtained by using the method. The analysis results of ship noise show that the fine analysis of propeller noise feature redound to obtain more physics feature and periodic modulation information of the propeller, and to improve recognition rate of the ship target. |
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