文章摘要
张林,笪良龙.波束位移射线简正波理论在双轴海洋声道中的应用[J].声学技术,2005,(3):167~169
波束位移射线简正波理论在双轴海洋声道中的应用
Application of beam-displacement ray-mode theory in two-axis underwater channel
投稿时间:2004-05-25  修订日期:2004-07-11
DOI:
中文关键词: BDRM理论  双轴海洋声道  传播损失
英文关键词: BDRM theory  two-axis underwater channel  transmission loss
基金项目:
作者单位
张林 海军潜艇学院水声中心, 青岛, 266071 
笪良龙 海军潜艇学院水声中心, 青岛, 266071 
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中文摘要:
      由于表面声道与深海声道间的耦合效应,声波在双轴海洋声道中的传播比较复杂,因此求解双轴海洋声道中的声场就比较困难。文章将浅海声传播的波束位移射线简正波(BDRM)理论应用于计算双轴海洋声道中的声场,进行了数值模拟并与传统简正波方法进行比较,结果表明应用BDRM理论计算的传播损失具有很高的精度和速度,可以对双轴海洋声道内声传播问题进行分析和预报。
英文摘要:
      Because of the coupling between surface channel and SOFAR channel, sound propagation in two-axis underwater channel is complex and calculation of acoustic fields is difficult. In this paper, beam,displacement ray-mode(BDRM) theory is applied to the calculation of the acoustic fields of two-axis underwater channel. Numerical simulations show that application of the BDRM theory is effective.
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