基于人耳听觉模型的船舶辐射噪声相似度分析

Evaluation research of ship-radiated noise based on human auditory model

针对船舶辐射噪声重构缺乏有效的相似度量化分析方法,提出一种基于人耳听觉模型的船舶辐射噪声相似度量化分析方法.该方法利用人耳对不同频段灵敏度上的差异,建立了基于人耳听觉特性的船舶辐射噪声重构分析数学模型,并以3种典型船舶辐射噪声数据为实验来源,对该分析方法进行了实验验证.实验结果表明:所提分析方法具有较好的效果,可用于度量重构噪声与实测噪声之间的差异.

Considering that ship-radiated noise is in lack of effective quantitative similarity evaluation method in technology research and recognition applications,an evaluation method of ship-radiated noise quantify fidelity based on human auditory model is presented in this paper.Combining with the response characteristics of human ear to different frequency signals,and taking different frequency range of ship-radiated noise as parameters,a mathematical model of ship-radiated noise evaluation based on human auditory characteristics is established.The experimental analysis was carried out with various types of ship-radiated noise measured at sea.Experimental results show that the evaluation method is feasible and has a good application prospect in quantitative evaluation of the similarity of ship-radiated noise.