摘要
目前,我国大部分声学测试试验在浅海海域进行,浅海声波导的多途效应、声速梯度的变化对声传播产生直接的影响。通过射线声学模型对不同频率的声源在浅海等声速梯度和温跃层声速梯度环境下辐射声场和声传播衰减特性进行仿真研究,给出声场分布图和传播损失变化曲线图,得到声场分布和传播损失随声源频率的变化规律。
At present,the most acoustic test tests in shallow sea waters,the multiplicity of shallow water waveguide effect,the change of the velocity gradient have direct influence on sound propagation. Acoustic model based on the ray in shallow sea different frequencies of sound sources such as sound velocity gradient and the thermocline velocity gradient under the environment of radiation sound field and acoustic propagation attenuation characteristic has carried on the simulation research,sound field distribution and transmission loss curve is given,and the sound field distribution and transmission loss of changing with the frequency of the sound source.
出处
《舰船科学技术》
北大核心
2015年第1期79-83,共5页
Ship Science and Technology
关键词
射线模型
声速梯度
声场分布
传播损失
ray model
sound velocity
sound field distribution
transmission loss
