An efficient broadband coupled-mode model using the Hamiltonian method for modal solutions

• 来源期刊: 中国科学:物理学 力学 天文学（英文版）
• 年，卷（期）: 2017,（9）
• 页码范围: 37-46
• 页数: 10页
• 语种: 英文
• DOI: 10.1007/s11433-017-9066-5

摘要

A numerically efficient broadband,range-dependent propagation model is proposed,which incorporates the Hamiltonian method into the coupled-mode model DGMCM.The Hamiltonian method is highly efficient for finding broadband eigenvalues,and DGMCM is an accurate model for range-dependent propagation in the frequency domain.Consequently,the proposed broadband model combining the Hamiltonian method and DGMCM has significant virtue in terms of both efficiency and accuracy.Numerical simulations are also provided.The numerical results indicate that the proposed model has a better performance over the broadband model using the Fourier synthesis and COUPLE,while retaining the same level of accuracy.