CAJ | 학술논문

声波在海洋中传播的特性，历来都是水声学一个极其重要的问题，本文通过模拟一个典型的楔形海底地形，用三维射线模型计算了声波在该海域传播的方向特性，计算结果指出，在海底倾角较大的海区，声线具有明显的水平折射，这种水平折射的效应，用于声源定位时必须予以修正。本文提出了一种简便易行的修正水平折射的方法。该结论对于水下目标定位具有重要的指导意义。
성파재해양중전파적특성，력래도시수성학일개겁기중요적문제，본문통과모의일개전형적설형해저지형，용삼유사선모형계산료성파재해해역전파적방향특성，계산결과지출，재해저경각교대적해구，성선구유명현적수평절사，저충수평절사적효응，용우성원정위시필수여이수정。본문제출료일충간편역행적수정수평절사적방법。해결론대우수하목표정위구유중요적지도의의。
Almost all of the sound rays will touch the bottom in shallow sea. So it is very important to research the characteristic of sea bed, especially its absorption and its contour reflection. A ray trace theory was discussed and applied to calculate sound trace and its loss. The best advantage of this method is its clear ray physical photo and its short calculating time.The result revealed, in shallow sea, the bottom mountains will remarkably influence sound transmission and made its intensity lower than flat bottom. At the same time, above the rest of the mountain, an additional convergence zone will be formed.