| 一种重构辐射噪声调制谱的方法 |
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| 引用本文： | 杨日杰,叶灵伟,徐进军.一种重构辐射噪声调制谱的方法[J].应用声学,2001,20(6):19-22. |
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| 作者姓名： | 杨日杰 叶灵伟 徐进军 |
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| 作者单位： | 海军航空工程学院青岛分院, |
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| 摘 要： | 在进行辐射噪声信号的仿真研究中，希望利用经滤波、特征提取等处理所得到的反映目标特性的线谱、连续谱、调制谱来重构辐射噪声，以便于研究辐射噪声在声场中的传播特性。本文提出了利用迭代算法估算调制深度谱的算法，给出了时域辐射噪声的重构模型，以实测数据的调制谱为出发点，来重构其时域信号，并对重构前后的调制谱进行了误差分析，取得了较好的效果。
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| 关 键 词： | 辐射噪声 调制谱 信号仿真 信号重构 信号处理 迭代算法 |
A method of reconstructing radiated noise modulation spectrum |
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| Yang Rijie,Ye Lingwei and Xu Jinjun.A method of reconstructing radiated noise modulation spectrum[J].Applied Acoustics,2001,20(6):19-22. |
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| Authors: | Yang Rijie Ye Lingwei and Xu Jinjun |
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| Institution: | Navy College of Navigation Engineering, Qingdao 266041;Navy College of Navigation Engineering, Qingdao 266041;Navy College of Navigation Engineering, Qingdao 266041 |
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| Abstract: | In the simulation research of radiated noise, to study the propagation proper-ties of radiated noise in a sound field, the radiated noise is reconstructed with line spectra, continuous spectra and modulated spectra. In this paper, a algorithm to calculate the modulated depth spectra with iterative is proposed and a radiated noise reconstructing model presented, good simulation result compare with the real measurement data is ob-tained. |
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| Keywords: | Radiated noise Modulation spectrum Reconstructing Simulation |
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