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利用实测实验数据,研究特定强度风浪噪声在不同频段的频谱特性,并对现有APL和库普曼-费尔拉风浪噪声模型和克努森频谱浅海区模型进行修正,建立风浪噪声声场特性反演模型。通过数据反演得到风浪噪声时域信号,生成在一定范围内幅值服从高斯分布、相位服从均匀分布的声学信号。反演实验结果显示在建立准确的模型基础上,可以通过数据反演获得海洋风浪噪声的声信号。
The experimental data are used to study the spectral characteristics of wind and noise with specific intensity in different frequency bands. The existing APL and Koopman-Ferla noise models and the Knudsen spectrum shallow-sea model are modified to establish the characteristics of wind noise Play model. The time-domain signal of wind-wave noise is obtained by data inversion, and the acoustic signal whose amplitude follows a Gaussian distribution within a certain range and whose phase is uniformly distributed is generated. The inversion results show that based on the accurate model, the acoustic signals of ocean noise can be obtained by data inversion.