声传播损失试验分析与仿真  

Sound transmission loss experiment analysis and simulation

作　　者：赵淑坤[1] 于金花[1] 常哲[1] 魏永星[1] 贾廷政[1] 

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《电子设计工程》2014年第12期72-74,共3页Electronic Design Engineering

基　　金：国家海洋公益性行业科研专项项目(201005004)

摘　　要：声传播损失是水声环境调查的主要内容之一,也是声场预报的重要参数之一。文章利用时频分析方法和能量计算,对声传播数据进行了处理,分析了某海域海洋声学环境特性以及声传播损失的空间分布,并与抛物方程(RAM)模型仿真结果进行了对比分析。结果表明,试验数据和仿真吻合良好,验证了模型的适用性以及声场预报的可行性。Sound transmission loss is an major content of underwater acoustic survey, also is an important parameter of acoustic field prediction. By using time-frequency analysis and energy calculation, This essay studies the processing method of sound transmission data, analyzes underwater acoustic environmental properties and spatial distribution of sound transmission loss, compares experimental data with Parabolic Equation model （RAM） simulation results. The results show good agreement with experimental data and simulations, validating the suitability of acoustic model as well as the feasibility of acoustic field prediction.

关 键 词：衰减 声传播损失 时频分析 模型仿真 

分 类 号：TN912.16[电子电信—通信与信息系统]