水下声信号激光探测技术采用了激光接收技术。
The laser detection of underwater acoustic signals exploited a laser receiving technique.
设计并实现了一套空中探测水下声信号的实验装置。
A research was made on detecting underwater acoustic signals using laser.
水下声信号在水-空气界面会引起表面波动而对打在水表面的激光进行调制。
The underwater acoustic signal can cause surface wave motion at the water-air interface and hence modulate the magnitude of the laser beam falling on the water surface.
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.
介绍了一种结合嵌入式系统、DSP系统和PC机系统，并且利用网络进行数据传输的水下声信号采集系统。
This article introduces a kind of underwater-acoustic signal gathering system which combines embedded system, DSP system, PC system and etc, and USES network to carry out data transmission.
众所周知，水下声信道是相干多途信道，信号在信道中的多径传播使得接收信号序列复杂化，因而极大地增加了信号处理的难度。
It's well known that underwater acoustic channel is a coherent multi-path channel, which brings difficulties in signal processing because of the complexity of the received signal sequence.
水下弱信号的检测和分类是水声信号处理领域中的难题。
Detection and classification of weak underwater signals are difficult problems in processing acoustic signals.
舰船辐射噪声信号的特征提取技术因其在水下装备中具有重要的应用价值，一直是国内外研究的热点和难点。
The technique of feature extraction of ship-radiated noise is of importance to underwater equipment, and it is a hotspot and difficult area in the national and international research.
研究结果为建立精确描述辐射噪声信号的非线性模型、为水下弱目标信号探测和识别提供一定的理论依据。
The results given in this paper, could provide novel theoretical foundation for the nonlinear character description of the ship noise, as well as for the latter detection and recognition.
近年来，水下导航、海洋探测、水下目标定位以及水下通信等领域迅猛发展，这些领域常常使用水声信号作为信息传输的载体。
In recent years, the field such as underwater navigation ocean exploration locating of underwater object and underwater communication develop very fast.
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.
研究了基于小波域多尺度树结构的水下噪声信号统计概率模型的建模方法。
The statistics modeling method of underwater noise signal is studied. The hidden Markov tree model in wavelet domain is adopted to model the sea noise and various ship-radiated noise.
利用虚拟仪器方便地实现了对水声信号的采集、处理，以及对水下目标测量时，为传感器结构和算法的确定提供参考。
It is convenient to use the virtual instrument for data acquisition and analysis of the underwater acoustic signal, and help us to determine the structure and the...
系统硬件以DSP和单片机为核心，能够通过接收到水下目标发射的合作声信号，实时准确的解算出水下目标的方位参数，并能在PC机上显示目标的运动曲线。
The system circuits are based on DSP and single chip computer, and can calculate the target's position information by using received acoustic signal, and display its moving curve timely on PC.
系统硬件以DSP和单片机为核心，能够通过接收到水下目标发射的合作声信号，实时准确的解算出水下目标的方位参数，并能在PC机上显示目标的运动曲线。
The system circuits are based on DSP and single chip computer, and can calculate the target's position information by using received acoustic signal, and display its moving curve timely on PC.
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