Generalized Coupled-Mode Formulation for Sound Propagation in Range-Dependent Waveguides
作者机构:State Key Laboratory of AcousticsInstitute of AcousticsChinese Academy of SciencesBeijing 100190 Graduate University of Chinese Academy of SciencesBeijing 100049
出 版 物:《Chinese Physics Letters》 (中国物理快报(英文版))
年 卷 期:2012年第29卷第1期
页 面:168-171页
核心收录:
学科分类:07[理学] 0701[理学-数学] 070101[理学-基础数学]
基 金:Supported by the Knowledge Innovation Program of Chinese Academy of Sciences
主 题:deformation. entirely dealing
摘 要:An accurate and numerically stable method based on the coupled-mode theory is *** applying the direct global matrix approach to obtain the modal expansion coefficients,this method is numerically *** addition,appropriately normalized range solutions are introduced,which resolves the overflow problem ***,we put forward source conditions appropriate for the line-source problem in plane *** a result,this method is capable of dealing with the scenario where a line source is located inside the region of a ***-form expressions for coupling matrices are provided for ideal *** results indicate that the present method is accurate and numerically ***,this model can serve as a benchmark in range-dependent propagation modeling.