| 高速物体入水噪声背景下定时信号的提取问题 |
| |
| 引用本文： | 王仁乾, 李迎春. 高速物体入水噪声背景下定时信号的提取问题[J]. 声学学报, 1988, 13(2): 111-118. DOI: 10.15949/j.cnki.0371-0025.1988.02.005 |
| |
| 作者姓名： | 王仁乾 李迎春 |
| |
| 作者单位： | 北京大学(王仁乾)，北京大学(李迎春) |
| |
| 摘 要： | 本文分析了高速入水物体所产生的击水噪声和水动力噪声的特性;讨论了以这两种噪声为主要噪声背景、物体自带声源时信号的检测特点,着重对声源声功率和接收机门限电平等参数选取的一般原则作了较为详细的论述;并在设定条件下估计了上述两个参数的数值。
|
| 收稿时间： | 1985-02-08 |
DETECTION OF A TIMING SIGNAL IN NOISE PRODUCED BY A HIGH SPEED MOVING BODY ENTERING INTO WATER |
| |
| WANG Ren-qian, LI Ying-chun. DETECTION OF A TIMING SIGNAL IN NOISE PRODUCED BY A HIGH SPEED MOVING BODY ENTERING INTO WATER[J]. ACTA ACUSTICA, 1988, 13(2): 111-118. DOI: 10.15949/j.cnki.0371-0025.1988.02.005 |
| |
| Authors: | WANG Ren-qian LI Ying-chun |
| |
| Abstract: | This paper analyses the characteristics of splash noise and hydrodynamic noise produced by a high speed body moving into water and discusses the properties of the received timing signal in the background of these two kinds of noise mentioned above.The timing signal is emitted from a sound source carried by the moving body.The general principle of choosing the parameters such as the power of the source and the threshold level of the receiver is expounded.Finally,under assumed conditions the numerical values of these two parameters are estimated. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《声学学报》浏览原始摘要信息 |
|
点击此处可从《声学学报》下载全文 |
