| 杨日杰,叶灵伟,徐进军.一种重构辐射噪声调制谱的方法[J].,2001,20(6):19-22 |
| 一种重构辐射噪声调制谱的方法 |
| A method of reconstructing radiated noise modulation spectrum |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
| DOI：10.11684/j.issn.1000-310X.2001.06.005 |
| 中文关键词: 辐射噪声 调制谱 重构 仿真 |
| 英文关键词: Radiated noise Modulation spectrum Reconstructing Simulation |
| 基金项目: |
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| 摘要点击次数: 2462 |
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