CAJ | 학술논문

海洋环境因素的变化对声线传播有着重要的影响。应用BELLHOP射线模型对海水介质中声线的传播进行了仿真研究，讨论了声线传播时对海底地形、声源深度、声线发射角度等因素变化的敏感性。仿真计算结果表明，声源深度的变化是浅海表面声道生消的主要因素，声线传播依海底地形的起伏而变化，声线的发射角度决定了浅海表面声道的传播距离，且角度每增大1°距离则减小2-3km。
해양배경인소적변화대성선전파유착중요적영향。응용BELLHOP사선모형대해수개질중성선적전파진행료방진연구，토론료성선전파시대해저지형、성원심도、성선발사각도등인소변화적민감성。방진계산결과표명，성원심도적변화시천해표면성도생소적주요인소，성선전파의해저지형적기복이변화，성선적발사각도결정료천해표면성도적전파거리，차각도매증대1°거리칙감소2-3km。
Factor＇s changes of ocean environment is important to sound ray propagation. This article studys into sound ray propagation in seawater by BELLHOP radial model. It discusses the sensitivity of the changes when sound ray is propagating, just as submarine topography, depth of sound source and angel of sound rays. The result of simulation shows that the depth change of sound source is the main cause that emerging and disappering of sound channel in shallow sea surface, the rise and fall of sound ray is in accordance with submarine topography, and the angel of sound rays determines the spreading distance of surface sound channel in shallow sea surface, and the distance cuts down 2-3km when the angel augments 1° .