水下模拟声源发射信号均衡控制方法的设计与实现

摘要

水下目标噪声模拟声源可以通过载入实测声源数据、对声源数据进行均衡控制等方式,实现模拟水下目标各噪声的变化规律和分布特点.根据声源发射信号的控制要求,研究一种基于信号1/3倍频程频段的信号均衡控制方法,可以实现实时、灵活地调节发射信号频谱.针对算法设计了相应的软件,试验结果表明,该方法可以方便有效地实现声源控制,达到模拟水下目标噪声的目的.%The underwater target noise simulated acoustic source can simulate the variation law and distribution charac-teristics of each noise from the underwater target by loading the measured acoustic source data and controlling these data. According to the control requirements of the acoustic source emission signals, a signal equalization control method based on signal one-third octave frequency band is studied, which can adjust the transmitted signal spectrum flexibly in real-time. The corresponding software is designed for the algorithm. The experimental results show that the method can realize acoustic source control easily and effectively, and achieve the purpose of simulating underwater noise.