| 黄海中部高频反向体积声散射的观察 |
| |
| 引用本文： | 裘辛方,张仁和,殷业. 黄海中部高频反向体积声散射的观察[J]. 声学技术, 1999, 0(2): 50-53 |
| |
| 作者姓名： | 裘辛方 张仁和 殷业 |
| |
| 作者单位： | [1]中国科学院东海研究站 [2]中国科学院声场声信息国家重点实验室 |
| |
| 基金项目： | 国家自然科学基金,美国海军研究署资助 |
| |
| 摘 要： | 本文利用频率为２００ｋＷｚ的垂直探鱼仪对黄海中部夏季反向体积声散射进行了观察，对散射回波信号作了录音。发现晚上散射很强，白天则很弱。经给出了计算机处理后不同深度散射信号随时间的变化，获得了散射体在黎明天亮时垂直向下移动的动态记录和由散射层垂直起伏所反映出海洋内波图象。
|
| 关 键 词： | 体积散射 声散射层 内波 海洋声学 高频 |
| 收稿时间： | 1999-01-06 |
| 修稿时间： | 1999-03-16 |
Observations of high-frequency acoustic volume backscattering in the mid-Yellow Sea |
| |
| QIU Xinfang,ZHANG Renhe and YIN Ye. Observations of high-frequency acoustic volume backscattering in the mid-Yellow Sea[J]. Technical Acoustics, 1999, 0(2): 50-53 |
| |
| Authors: | QIU Xinfang ZHANG Renhe YIN Ye |
| |
| Affiliation: | Shanghai Acoustics Laboratory, Academia Sinica, Shanghai 200032;National Laboratory of Acoustics, Academia Sinica, Beijing 100080;National Laboratory of Acoustics, Academia Sinica, Beijing 100080 |
| |
| Abstract: | Observations of high frequency acoustic volume backscattering in the mid Yellow Sea were made in the summer of 1996 by a 200kHz fish finder.The received scattering signals were recorded by a tape recorder and then processed by a computer. It was found that the backscattering was strong at night and became much weak in the daytime. The echo images showing the depth dependent backscattering as a function of time, the downward movement of scatters near dawn and internal waves are presented. |
| |
| Keywords: | volume backscattering acoustic scattering layer internal wave |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《声学技术》浏览原始摘要信息 |
|
点击此处可从《声学技术》下载全文 |
