首站-论文投稿智能助手
典型文献
Wave mode computing method using the step-split Padé parabolic equation
文献摘要:
Models based on a parabolic equation(PE)can accurately predict sound propagation problems in range-dependent ocean waveguides.Consequently,this method has developed rapidly in recent years.Compared with normal mode theory,PE focuses on numerical calculation,which is difficult to use in the mode domain analysis of sound propagation,such as the calculation of mode phase velocity and group velocity.To broaden the capability of PE models in analyzing the underwater sound field,a wave mode calculation method based on PE is proposed in this study.Step-split Padé PE recursive matrix equations are combined to obtain a propagation matrix.Then,the eigenvalue decomposition technique is applied to the matrix to extract sound mode eigenvalues and eigenfunctions.Numerical experiments on some typical waveguides are performed to test the accuracy and flexibility of the new method.Discussions on different orders of Padé approximant demonstrate angle limitations in PE and the missing root problem is also discussed to prove the advantage of the new method.The PE mode method can be expanded in the future to solve smooth wave modes in ocean waveguides,including fluctuating boundaries and sound speed profiles.
文献关键词:
作者姓名:
Chuan-Xiu Xu;Guang-Ying Zheng
作者机构:
Hangzhou Applied Acoustics Research Institute,Hangzhou 310023,China;Science and Technology on Sonar Laboratory,Hangzhou 310023,China
引用格式:
[1]Chuan-Xiu Xu;Guang-Ying Zheng-.Wave mode computing method using the step-split Padé parabolic equation)[J].中国物理B(英文版),2022(09):398-405
A类:
approximant
B类:
Wave,computing,method,using,step,split,Pad,parabolic,Models,PE,can,accurately,predict,sound,propagation,problems,range,dependent,ocean,waveguides,Consequently,this,developed,rapidly,recent,years,Compared,normal,theory,focuses,numerical,calculation,which,difficult,domain,analysis,such,phase,velocity,group,To,broaden,capability,models,analyzing,underwater,field,proposed,study,Step,recursive,matrix,equations,combined,obtain,Then,decomposition,technique,applied,extract,eigenvalues,eigenfunctions,Numerical,experiments,some,typical,performed,test,accuracy,flexibility,new,Discussions,different,orders,demonstrate,angle,limitations,missing,root,also,discussed,prove,advantage,be,expanded,future,solve,smooth,modes,including,fluctuating,boundaries,speed,profiles
AB值:
0.555956
相似文献
On-chip beam rotators,adiabatic mode converters,and waveplates through low-loss waveguides with variable cross-sections
Bangshan Sun;Fyodor Morozko;Patrick S.Salter;Simon Moser;Zhikai Pong;Raj B.Patel;Ian A.Walmsley;Mohan Wang;Adir Hazan;Nicolas Barré;Alexander Jesacher;Julian Fells;Chao He;Aviad Katiyi;Zhen-Nan Tian;Alina Karabchevsky;Martin J.Booth-Department of Engineering Science,University of Oxford,Oxford OX1 3PJ,UK;School of Electrical and Computer Engineering,Ben-Gurion University of the Negev,P.O.B.653,Beer-Sheva 8410501,Israel;Institute of Biomedical Physics,Medical University of Innsbruck,Müllerstra?e 44,6020 Innsbruck,Austria;Ultrafast Quantum Optics group,Department of Physics,Imperial College London,London,UK;Department of Physics,University of Oxford,Oxford,UK;Erlangen Graduate School in Advanced Optical Technologies(SAOT),Friedrich-Alexander-University Erlangen-Nurnberg,Paul-Gordan-Stra?e 6,91052 Erlangen,Germany;State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China
Dynamic bifunctional THz metasurface via dual-mode decoupling
Xuan Cong;Hongxin Zeng;Shiqi Wang;Qiwu Shi;Shixiong Liang;Jiandong Sun;Sen Gong;Feng Lan;Ziqiang Yang;Yaxin Zhang-Terahertz Science and Technology Research Center, University of Electronic Science and Technology of China, Chengdu 610000, China;College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China;National Key Laboratory of Application Specific Integrated Circuit, Hebei Semiconductor Research Institute, Shijiazhuang 050051, China;Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou 215123, China;Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou 313001, China
机标中图分类号,由域田数据科技根据网络公开资料自动分析生成,仅供学习研究参考。