【摘要】 给出了一种能够模拟具有指定功率谱特征的舰船辐射噪声的方法。此方法让白噪声通过具有特定响应的FIR 滤波器来模拟舰船辐射噪声中的连续谱成分。FIR滤波器的设计采用自适应方法,克服了原有方法的数值稳定性问题,而且在设计中可以通过改变期望响应方便地改变滤波器的幅频响应,以模拟具有指定功率谱特征的舰船辐射噪声,从而使这种设计具有更大的灵活性和实用性。更多还原

【Abstract】 A method of simulating vessel’s radiated noise with specified power spectrum is presented. The power spectrum of the simulated noise is determined by the amplitude response of FIR filter. The FIR filter is designed by adaptive method, which makes the simulation more practical and flexible. The results of computer simulation show that the presented method can reconstitute typical acoustical signal with specified power spectrum.更多还原