河北工业科技2011，Vol.28Issue(6)：366-368,3.
极小掠射角下分层海底的声反射损失研究
Study on acoustic reflection loss in layered seabed at very small grazing angle
韩震 1李志华 1周开华1
作者信息
- 1. 海军蚌埠士官学校兵器系,安徽蚌埠 233012
- 折叠
摘要
Abstract
A kind of typical seabed in the continental shelf of shallow sea is selected to establish a model of layered seabed which is composed of water-sediment with low acoustic velocity-half-space with high acoustic velocity. The acoustic reflection loss of layered seabed at very small grazing angle is analysed after calculating and transforming the gross reflection coefficient. A conclusion is drawn that a sudden high reflection loss shows at poles of reflection coefficient where the the sediment's depth-wavelength ratio equals a series of special values. Meanwhile,the reflection loss when the grazing angle is 1° is higher than the one when the grazing angle is 2°. That is to say the smaller the grazing angle is, the higher the reflection loss is and the more the energy into seabed is.关键词
小掠射角/分层海底/声反射损失Key words
small grazing angle/layered seabed/acoustic reflection loss分类
海洋科学引用本文复制引用
韩震,李志华,周开华..极小掠射角下分层海底的声反射损失研究[J].河北工业科技,2011,28(6):366-368,3.
