受到蝙蝠的启发，人们发明了声呐。
研究结果可以用于被动声呐目标识别。
The research results can be applied to the passive sonar target recognition.
该文讨论了被动合成孔径声呐远程定位问题。
In this paper, a new technique about long distance source localization with passive synthetic aperture sonar array is presented.
声速是海洋声呐测量中最重要的声学参数之一。
The sound velocity is one of the most important acoustic parameter in ocean sonar.
相关测速声呐与多普勒测速声呐相比有很多优点。
The acoustic correlation log has striking advantages compared with the Doppler log.
合成孔径声呐成像中，主要通过自聚焦校正剩余相位误差。
In synthetic aperture sonar imaging, the residual phase error is mainly corrected via autofocus.
拖曳式线列阵是近来声呐信号处理领域中非常活跃的课题。
Towed line array is recently a very active topic in the field of sonar signal processing.
本论文研究并分析了主动声呐混响模型以及抗混响信号处理。
This dissertation studies and analyses active sonar reverberation model and anti-reverberation signal processing.
本文所提供的方法可以在数字式声呐中用于实时跟踪多个目标。
For a digital sonar it is possible to track more than one targets simultaneously by using the method described in this paper.
其主要任务是侦察目标主动声呐的工作参数，对目标实施跟踪。
The main task of it is to measure the working parameter of active sonar and track the target.
在某种意义上说，信号处理设备已成为现代声呐的核心部分之一。
So it is said that the SPU is one of the kernel part of modern Sonar.
随着舰船噪声的降低，对被动声呐的检测性能提出了巨大的挑战。
Along with the decreasing noise radiation of underwater vessels, it appears a big challenge to the passive sonar.
将基于粗集理论的中值滤波应用于声呐图像处理中，给出了实验结果。
The median filtering method based upon Rough set theory was applied to the sonar image processing, and the demonstration was given.
声呐脉冲侦察是利用目标主动声呐发射的脉冲信号来探测目标的技术。
Detecting sonar pulse transmitted by an active sonar, it is called "sonar pulse detection".
目标噪声特征提取和目标分类器设计是被动声呐目标识别系统的关键技术。
Feature extraction of targets radiated noise and design of targets classifier are key technique of passive sonar target recognition system.
该方法极大地提高了在高强度直达波干扰下主动声呐提取目标回波的精度。
This method is greatly increased in the high-intensity direct wave interference under active sonar echo extraction accuracy.
本文的结果可供在实际声呐波回波中提取极点，进而实现目标识别时参考。
The results can be applied to the extraction of poles and the identification of some target from the real sonar echo.
本文介绍了CS - 1型侧扫声呐系统的组成和工作原理以及它的特点。
This paper presents Model CS-1 side scan sonar system components, principle and its features.
“凯旋号”的声呐罩受损，但凭己之力返回位于法国西角的长岛基地，据法国方面报道。
Le Triomphant suffered damaged to a sonar dome but returned under its own power to its base on L'Ile Longue on France's western tip, France said.
有时她甚至连场都不下，但她总是像生了根似地呆在那里，为获胜的队高声呐喊。
Sometimes she didn't even take the field, but she was always there, rooting loudly for the winning team.
声呐浮标测试系统能够模拟水下声信号，用以检测声呐浮标的工作状态和性能。
The sonar buoy testing system can emulate signal of underwater sound and detect the operating status and performance of sonar buoy.
本论文在改进的声呐脉冲侦察模块硬件系统的基础上，开发了一套实时系统软件。
In the thesis, a series of real-time system software of sonar pulse detection is developed on an improved hardware system.
首先以无源声呐对目标的方位角、俯仰角和频率测量为依据，建立动态系统模型。
The model of motive system is made in the light of measurements of target bearings, elevation and frequency by passive sonar.
位移相位中心法在合成孔径声呐载体运动误差较小时是一种运动补偿的有效方法。
Displaced phase center algorithm is an effective motion compensation method when the motion error along the synthetic aperture is small.
因此，声呐显示处理技术与声呐显示器能否正确、快速地显示出目标信息息息相关。
So sonar display processing technology is closely linked to the case whether sonar display can display the target information to the operator truly and quickly.
直到最近又看了一遍，我才意识到这部影片面对绝望的无声呐喊，是多么的清晰又迷狂。
Only recently, seeing it again, did I realize how much clarity and passion Antonioni brought to the film's silent cry of despair.
当5,000名与会者开始控制飞机着陆时，安静的大厅暴发了高声呐喊和急迫的命令。
As the 5,000 conference participants begin to take down their plane for landing, the hush in the hall is ended by abrupt shouts and urgent commands.
舰艇声呐系统集成是当前舰船电子研究领域的新热点，同时它也是一项复杂的系统工程。
Systematic integration of shipboard sonar nowadays is hot in the field of ship electronic research, however, it is also a complex project.
舰艇声呐系统集成是当前舰船电子研究领域的新热点，同时它也是一项复杂的系统工程。
Systematic integration of shipboard sonar nowadays is hot in the field of ship electronic research, however, it is also a complex project.
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