舰船噪声能量分布及零交叉密度在听觉上的反映

RELATIONSHIP OF ENERGY DISTRIBUTION AND ZERO-CROSSING DENSITY OF SHIPS NOISE TO MAN'S HEARING

采用功率谱计算和小波分解的方法,分析了不同类型舰船辐射噪声在能量分布及噪声信号在不同尺度上的零交叉密度,找到了二者与人耳进行听音识别感觉之间的联系,为人的听音经验转化为数字特征提供了客观依据。

By calculating energy spectrum and wavelet decomposition of ship noise, the relation of energy distribution and zerocrossing density of different ships noise to man's hearing is established