本文介绍了水下声传输数据通讯的原理、功能作用及关键技术研究。
The theory, function, feature, and key technology points of data communicator using underwater acoustic transmission are introduced in this paper.
对浮筏系统的振动传递及水下声辐射特性进行试验研究有其重要的工程应用前景。
Vibration transmission and underwater acoustic radiation characteristics experiment of floating raft system has an important technical application prospect.
直接序列码分多址（DS/CDMA）是一种受关注的水下声通信网多址接入方案。
Direct sequence code division multiple access (DS/CDMA) as a technique for underwater acoustic networks is attracting attention from researchers.
研制宽频带水下目标模拟器对于开展水下对抗技术的研究和验证水下声系统的性能具有十分重要的意义。
The study of the underwater wideband target emulator plays a very important role in improving the underwater acoustic system technology and verifying the performance of the underwater acoustic system.
针对水下声系统的应用背景，详细介绍了两种时延估计算法：基于特征值分解的MUSIC算法和基于最小二乘法的时延估计算法。
For the application of underwater acoustic systems, we present two algorithms in detail: MUSIC algorithm based on the eigenvalue decomposition and least square method.
这套系统主要由水下应答器、传载水下声头和船载主控机组成。本论文的研究工作主要是长程超短基线定位系统中传载水下声头内收发单元的硬件设计与实现。
The research work of this article is the hardware design of receiving and transmitting unit in the under-water acoustic head of Long Range Ultra short Base-Line Positioning System.
接着，我们用一个水下扬声器将电子合成声播放给海豚听，发现它们有强烈的反应。
Then we played it back to the dolphins through an underwater speaker and we found they responded strongly.
文章旨在探讨用声固耦合算法模拟舰船水下爆炸是可行的。
Studied is the feasibility of using coupled acoustic-structural analysis to simulate an underwater explosion involving a warship.
摘要：为了解决水下远程目标被动探测问题，提出了一种声矢量圆阵的信源数检测方法。
Abstract: to solve the passive detection problems of underwater remote targets, we propose a method for detecting source Numbers with a uniform circular acoustic vector sensor array.
水下目标声散射特性研究是主动声纳赖以工作的基础，也是主动探测产生新思想、新原理、新方法的基础。
The study on the characteristics of scattering from an underwater target is only the base that the active sonar works on but also the source which new ideas, new theories and new methods come from.
当利用它进行水下目标强度测试时，一个很实际的问题就是怎样区分声源直达声和目标反射回声，快速找出目标特性。
When we use it to test the underwater target strength, one problem is how to discriminate the direct sound of the source with the echo reflected from the target, finding the target character quickly.
水下结构声辐射和声传输的数值分析和主动控制研究，具有重要的理论意义和应用前景。
Numerical analysis and active control of underwater structural acoustic radiation and transmission are very important for achieving quiet submerged structures.
为了降低水下航行器和物体表面的声反射和声辐射强度，可以采用玻璃钢夹层结构代替单层玻璃钢结构。
To reduce the acoustic target strength of submarines and other underwater objects, a single layer of glass fibrous reinforced composites (GFRP) was replaced by a sandwich of the material.
本文介绍水下高速运动目标近程引爆的主动声引信的设计研究。
This paper introduces the study and implementation of an active acoustic fuze for an underwater high speed moving target.
文中介绍了关于三种不同声源的声图像试验及试验结果，即：水下五元十字形声源的声图像；某型水下发动机的声图像和一艘水面航行船模的声图像。
Three experiments are described in the paper, i. e. the sound image of cross array with five elements, the sound image of underwater engine, and the sound image of moving ship model.
设计良好的水下对空声探测系统，需要深入理解空气声波透射入水规律。
The research on air-to-water sound transmission is essential for designing underwater acoustic system to detect airborne target.
对某水下结构，依据声辐射规律，利用互易方法估计了该结构的振动状况。
The vibration status of a certain structure was researched on the basis of the sound radiation property by using the reciprocity method.
把一枚海螺放在耳边，你会听见来自水下洞穴的海浪声，仿佛置身于一个充满海水的房间。
With your ear to a seashell, you can hear the waves in underwater caves, as if you actually were inside a saltwater room.
可用作水下目标声特征逼真模拟器(声靶)，也可作其它低频宽带大功率声源使用。
It can be used as a high-performance underwater acoustic target simulator, or as a low frequency broadband high power underwater acoustic source.
针对水下任意形状刚硬体，建立了其声散射T矩阵法计算模型。
A computational model of T-matrix method to calculate the acoustic scattering from the submerged rigid objects with arbitrary shapes is established.
水声工程中，改善和提高自由场材料声学测试精度和可靠程度对水下航行器的声隐身设计具有非常重要的工程应用价值和现实意义。
In underwater acoustic engineering, improving precision of acoustic measurement for materials in free-field is very important in design of acoustic stealthy of underwater vehicle.
针对带有舵翼的水下航行器尾部结构模型，研究舵翼对水下航行器尾部的振动及声辐射的影响。
The vibration and sound radiation behaviors of the stern of submarine with rudder and vane are studied.
上述研究结果，为脉冲激光致声水下目标探测等应用提供了理论和实验依据。
These results can provide theoretical and experimental proof for application of laser acoustics in under-water object detecting.
水下加肋壳体的结构声问题在水下航行器隐身技术中有更广阔应用。
The structural acoustic problem of the ribbed shells in water is extensively applied in the hiding technology of the underwater navigation devices.
本文对水下三维弹性结构振动的声辐射问题进行了流体-结构声耦合振动的数值计算。
Numerical calculation of fluid-structure acoustic coupling vibration were carried out for a 3-d elastic structure with FEM applied to structure analysis and BEM to fluid respectively.
论文文摘本论文基于主动声纳的基本原理，提出适用于浅海环境水下近程低速目标主动声探测系统。
On the base of the active sonar theory, This thesis provide active ultrasonic detecting system that application in low-speed moving object of short-range in shallow sea surroundings.
论文文摘本论文基于主动声纳的基本原理，提出适用于浅海环境水下近程低速目标主动声探测系统。
On the base of the active sonar theory, This thesis provide active ultrasonic detecting system that application in low-speed moving object of short-range in shallow sea surroundings.
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