时间反转处理(trp)是利用这种聚焦特性的信号处理方法，它在水声通信、主动声纳检测这类脉冲—回波型领域的应用研究越来越受到重视。
Time Reversal processing (TRP) is a signal processing method based on the focusing property. It attached more attention in underwater acoustic communication, active detection and so on.
检测水压承受力的金属嘎吱作响、发出哀嚎；声纳(声波定位仪)发出的声音常常刚刚达到张力的最大值。
Metal tested to endurance creaks and groans; a sonar pings just often enough to maximise the tension.
本文结合工程项目的需要，介绍了在设计被动声纳显示平台中所使用的信号检测技术和显示处理技术。
Supported by a project, this thesis presents the technology about passive sonar display and signal detection in design of the sonar display console.
信号恢复是雷达声纳目标检测和通信信号处理的一项重要任务。
Signal recovery is a very important task for detection of radar sonar target and communication signal processing.
在高频声纳图像目标检测中，对图像分割后，需要对前景目标参数进行提取。
In object detection of high frequency sonar image, it needs to get the parameters of foreground objects after image segmentation.
在被动声纳系统中，线谱检测是一个至关重要的问题。
A crucial issue in a passive sonar system is detection of the spectral lines.
主动声纳信号检测性能的分析上，目前在计算机仿真中一般假定混响包络的统计特性符合瑞利分布模型。
Recently in the analysis of active sonar signal detecting performance, the statistical model of reverberation envelope is assumed to be in accord with Rayleigh-distribution in computer simulation.
基于提高被动声纳的检测能力，对水声信号的盲源分离技术进行了探索性研究。
To improve the detection performance of passive sonar, present dissertation addresses the blind separation of underwater acoustic signals.
现代声纳系统普遍采用水听器基阵和一定的信号处理来提高对目标的检测和定位能力，而基阵的波束形成则在其中起着核心作用。
Modern sonar systems generally use hydrophone arrays and advanced signal processing techniques to improve their detection and localization abilities, and beam forming plays an important role.
浅海环境下主动声纳具体信号形式尤其是宽带多卜勒敏感信号波形结构特点分析与检测技术是本论文研究的主要内容。
In this thesis, the signal waveforms of an active sonar in shallow waters are studied, in particular, the structure of wideband Doppler sensitive signals are emphasized.
在被动声纳系统中，线谱检测是一个至关重要的问题。
Detections of the spectral lines is an important issue in the passive sonar system.
针对振动噪声影响下的舷侧阵声纳的信号检测问题，提出了一种基于时域加窗的信号检测方法。
A signal detection method based on the time-windowing was proposed for improving the signal detection performance of flank sonar mainly affected by the vibration noise.
由于超增益阵具有尺度小、空间增益高的特点，对于改进低频被动声纳的检测性能具有重要的意义。
Therefore, supergain hydrophone array, particularly the small-sized circular array, is very good for improving the detection performance of low frequency passive sonar.
实验结果证明，该方法对于纹理较强的侧扫声纳图像中感兴趣区域（目标）的检测有较好的效果。
Results show that the method has a perfect performance for regions of interest (target) detection of side-scan sonar image with strong texture.
水下目标回声信号的检测是主动声纳目标识别的重要内容。
Detection of echo signal is an important part of underwater object recognition.
水下目标回声信号的检测是主动声纳目标识别的重要内容。
Detection of echo signal is an important part of underwater object recognition.
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