浅海混响的建模与预报  

Modeling and prediction of reverberation in shallow water

作　　者：姚万军[1] 蔡志明[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《海军工程大学学报》2009年第2期88-91,112,共5页Journal of Naval University of Engineering

摘　　要：建立了独立于传播模型之外的统一的浅海混响计算模型,分别给出基于简正波理论和波束跟踪理论的模型表达式。结合仿真算例和实验数据,进行了基于这两种理论的模型计算结果比较分析和实验验证。结果表明,统一的混响计算模型有利于基于不同的传播模型进行混响强度的计算,且具有明晰的物理意义;基于简正波理论与波束跟踪理论的模型计算结果吻合,使用这两种方法都能很好地预报实验结果。An abstract model was established for calculating reverberation loss in shallow water, which is independent of propagation models. Also the expressions of the model were given based on normal-mode and beam tracing theory. By using these two theories, the results were compared with each other, and also with the experimental data. The final result shows that the abstract model makes it easier to calculate reverberation with different propagation models. And it is of clear physical significance too. The models can get identical results based on normal-mode and beam tracing theory, and can be both used to forecast the shallow water reverberation loss.

关 键 词：混响 简正波 波束跟踪理论 

分 类 号：TB56[交通运输工程—水声工程]