A three-dimensional coupled-mode model for the acoustic field in a two-dimensional waveguide with perfectly reflecting boundaries
Luo Wen-Yu1, †, , Yu Xiao-Lin1, 2, Yang Xue-Feng2, 3, Zhang Ze-Zhong1, 2, Zhang Ren-He1
       

TL along the range computed by the analytical image solution (blue solid curves), the analytical total solution (red dashed curves), and DGMCM3D (green dashed curves) for the 3° wedge problem with a rigid bottom. (a) At depth 30 m, y = 0 km; (b) at depth 150 m, y = 0 km; (c) at depth 30 m, y = 10 km; (d) at depth 150 m, y = 10 km.