| 喷射航行体辐射噪声机理分析 |
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| 引用本文： | 岳剑平,孙良义,贾建龙.喷射航行体辐射噪声机理分析[J].舰船科学技术,2008,30(6). |
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| 作者姓名： | 岳剑平 孙良义 贾建龙 |
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| 作者单位： | 91388部队,广东,湛江,524022;91388部队,广东,湛江,524022;91388部队,广东,湛江,524022 |
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| 摘 要： | 喷射航行体具有很高的速度,其辐射噪声主要含结构振动噪声和气泡脉动噪声。实测信号分析表明,低频分量基本无多普勒效应,以气泡脉动噪声为主;高频分量的空间位移速度大,以推进器壳体振动噪声为主。两类噪声对信号处理产生不同影响,表现在目标深度测量时效果各异,以气泡噪声的平滑效果为佳。
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| 关 键 词： | 目标特性 噪声测量 被动定位 |
Mechanism analysis of radiated noise for spraying vehicle |
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| YUE Jian-ping,SUN Liang-yi,JIA Jian-long.Mechanism analysis of radiated noise for spraying vehicle[J].Ship Science and Technology,2008,30(6). |
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| Authors: | YUE Jian-ping SUN Liang-yi JIA Jian-long |
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| Abstract: | Spraying vehicles have very high speed.Its radiated noises include structure vibration noises and bubble pulsation noises.The analysis of the measured signals indicates that low frequency component is mainly bubble pulsation noises,with little Doppler effect;With high speed of space displacement,high frequency component is primarily consisted of vibration noises from the propeller hull.Two kinds of noises have different impact on signal processing.It shows different results in the depth measurement of the target.Better smoothing characteristic is achieved for the bubble pulsation noises. |
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| Keywords: | target characteristics noise measurement passive positioning |
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