| 郁红波,鞠建波,魏帅,杨少伟.浅海海底地形对吊放声呐探测距离的影响[J].声学技术,2021,40(1):49~56 |
| 浅海海底地形对吊放声呐探测距离的影响 |
| Effects of shallow seabed topography on the detection range of hanging sonar |
| 投稿时间：2019-11-30 修订日期：2019-12-24 |
| DOI：10.16300/j.cnki.1000-3630.2021.01.008 |
| 中文关键词: 吊放声呐 海底地形 声线轨迹 声速梯度 作用距离 |
| 英文关键词: hanging sonar seabed topography ray trace sound velocity gradient detection range |
| 基金项目: |
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| 中文摘要: |
| 吊放声呐的探测距离不仅与装备的自身性能和海洋水声环境特性有关，还受海底地形影响。利用射线声学模型，仿真分析了正声速梯度和带有跃变层声速梯度下，不同高度和深度的海底山体和海底盆地（简称：海盆）两种典型地形下的声传播特性。通过声传播特性，得出了不同高度和深度的海底山体和海盆两种典型地形对吊放声呐作用距离的影响。根据声传播特性，得出了不同海底地形下潜艇规避吊放声呐搜索的大致航行区域，给出了吊放声呐增加搜潜概率的可行性方案。 |
| 英文摘要: |
| The detection range of the hanging sonar is not only related to the performance of the equipment and the characteristics of the marine acoustic environment, but also affected by the seabed topography. In this paper, the acoustic propagation characteristics of two typical seabed topographies (undersea mountain and basin) of different heights and depths are simulated and analyzed by ray acoustic model under the sound velocity profile of positive gradient and the sound velocity profile with a leaping layer. Based on the characteristics of acoustic propagation, the influences of the two typical seabed topographies on the detection distance of hanging sonar are obtained. According to the characteristics of acoustic propagation, the approximate navigational areas of submarine avoiding sonar search under different undersea terrain are obtained, and the feasible scheme to increase the submarine search probability of hanging sonar is given. |
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