空中声源水下声场的简正波建模方法

Normal Mode Method Calculate Sound in the Air Product Sound Field in Water

摘要:

空水界面声信号传播特性是水下检测空中声源首先要研究的问题,文中讨论了空中声源在水下产生声场的简正波模型,仿真分析了空中声源的水下声场,比较了简正波方法与射线方法、快速场方法对空中声源在水下产生的声场传播损失。结论表明简正波方法适用于远场传播损失。

Abstract:

The characteristics of air-to-water sound transmission should be considered when detecting in water. In this paper, the normal mode method was used to discuss the sound field in water of airborne source. And the sound field in water produced by airborne sound was simulated and analyzed. Then the normal mode method was compared with ray method and FFT for the sound field transmission loss in water of airborne source. The results show that the normal mode method suits for the simulation of far field transmission loss.