sonar

In this paper, the means to reduce mine's target strength ( TS) and its effects to reduce sonar detection distance are also analyzed, and it is proved an effective method.

讨论了改变水雷外形以降低其目标强度（TS）途径，分析了几种不同水雷外形对声纳探测距离的影响，认为改变水雷外形是降低声探测距离的有效手段。

In this dissertation, we study a supergain array to improve the detection performance of passive sonar.

本文从提高被动声呐的检测性能出发,提出了超增益阵的设计.

In this paper, a new map building method sonar data is presented.

未知环境中移动机器人地图创建是自主移动机器人一项重要的基本功能.

Campaign platforms underwater such as submarine are very important underwater force for every military country. Along with the development of the underwater detection technology, the threat to them is much larger when facing the enemy active sonar and the underwater weapons.

潜艇等水下作战平台是各军事强国海军重点发展的水下威慑力量，但随着水下探测技术的发展，面临着敌方主动声呐和水下兵器越来越大的威胁。

Therefore , Passive SONAR SONARsubmarine . The traditional SONARs are consisted of middle or small scale Integrated circuit.

传统被动声呐系统多半采用中小规模集成电路,体积较大,硬件处理能力低.

We picked up two submarines on sonar.

我们用声呐系统观察到两条潜水艇.

Target motion analysis ( TMA ) is an important problem for sonar.

目标运动分析是声纳的一个重要问题.

For radar and sonar systems, wideband condition has more applications and suitability than narrowband condition.

对于雷达、声纳系统而言, 宽带条件往往比窄带条件具有更广泛的适用性.

Active SONAR provides signal for enemy when ranging pulse and this is very dangerous for submarine.

被动声纳因隐蔽性好等优点而倍受关注,成为潜艇的主战声纳.

Adaptive signal processing ( ASP ) is extensively applied in communication, radar, navigation sonar, and so on.

摘要自适应信号处理广泛应用于通信 、 雷达 、 导航 、 声纳等领域.

It works in a similar way to a sonar unit on a warship or submarine.

声音从一个形状象双筒电筒样的超声电筒发射出去.

Passive sonar technology is applied in the fishery detector system for the first time as well.

同时系统在几个方面都具有创新,首次在渔探仪中使用了新型矢量水听器.

A sonar array is a radar towed behind a ship that listens and locates underwater sounds.

声纳阵列雷达拖着船舶侦听和位于水下声音.

According to the property of broadband target noise, the thesis presents a method of DOA estimation for uniform round sonar arrays and introduces joint interpolation-filter-delay-extract method.

针对目标辐射噪声的宽带特性，研究了基于均匀圆形声纳基阵的信号入射方位估计算法，并采用级联的插值-滤波-延时-抽取方法实现了该算法。

Sonar to control. The bottom is rising. Range one thousand yards to the continental shelf.

声纳呼叫驾驶室. 海底坡度开始抬升, 距大陆架一千码.

The whales need sonar to find food.

而鲸鱼就是靠这种能力来寻找食物的.

Cavitation is noisy and easily detected by sonar.

空泡现象是有噪声的并且容易被声纳探测到.

With the development of the electronic technical and information science, there is miniaturization, intelligentized, systematization gradually in sonar system.

随着电子技术和计算机科学技术的发展，声呐系统逐渐趋于小型化、智能化和系统化。

To build a good salt delve gas storage reservoir, sonar measuring technique is introduced.

为建好盐穴储气库, 引进并采用声纳测量技术.

As a detecting device working underwater, the synthesize aperture sonar is fixed in the underwater carrier.

作为水下探测器的一种, 该系统的水下探测部分载体内承装的是合成孔径声纳系统.

The towed array sonar is used extensively in modern antisubmarine, ocean geologic and resources surveying techniques.

在现代反潜 、 海洋水文和资源勘探测量中,拖曳线列阵声纳得到了越来越广泛的应用.

Dolphins navigate by bouncing sonar waves off objects to determine location and distance.

海豚靠强大的声纳系统发出声波来确定物体的位置和距离.

Beamforming is an important technology in sonar signal processing.

波束形成是声纳信号处理中的一个重要组成部分.

It is an oceanographic ship that gathers underwater acoustic data, using sonar.

这是一只海洋研究船,用于收集海底声音资料,供声纳兵使用.

Other dolphins use their own sonar, too , but they also rely on vision.

它的耳部由一块厚厚的脂肪层保护着, 可免受外界噪音的干扰.

A device used to automatically follow a sonar signal to which it is assigned.

一个自动跟随分配的声纳信号的设备.

Passive Sonar Target Track Association Based on Bispectrum Feature

基于双谱特征的被动声纳目标航迹关联

The scientists are inspired from the body of sea vein while improving sonar system.

科学家们在改进声纳系统的时候,从海脉的身上得到了启迪.

Sonar, Kipper and Bottlenose were waiting for Seaweed.

声纳 、 吧嗒、槌等候海藻.

On Structure of High Speed Sonar Signal Processing System Design of the Cordless Telephone Answering Device

高性能自动录音无绳电话机无绳自动答录电话机的系统设计