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.
实验表明：膜片型光纤光栅水听器可准确检测水声信号。
Experiments show that such hydrophone can detect underwater sound accurately.
水声信号的宽波束发射技术是水声探测、通讯中重要的关键技术之一。
The broad beamwidth transducer is one of the most important key technologies of underwater detecting and communication system.
水声信号检测技术在国防科技建设中具有重要的理论意义和军事应用价值。
The technology of underwater signal detection has significant theoretical and military values in our national defensive construction.
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.
基于非线性动力学理论的水声信号相空间处理，是水声信号处理的一种新途径。
Signal processing in phase space based on nonlinear dynamics theory is a new method for underwater acoustic signal processing.
讨论了目前混沌信号的分析方法，并提出了混沌在水声信号辨识中的应用方法。
This paper reviews the existing methods of chaotic signals analysis and puts forward applications of chaos to the identification of underwater acoustic signals.
研究了基于听觉模型的水声信号特征提取方法，提取了舰船辐射噪声的听觉特征。
The approach of how to extract underwater acoustic signal with auditory model is studied and the auditory features of ship-radiated noise is extracted.
通过对水声信号的时间结构和声脉冲幅度变化规律的测定，着重研究了热声理论。
Thermoacoustic theory has been studied particularly by exploring the time structure of acoustic signals and the law of acoustic pulse amplitude variation.
论文在分析了水声信号特点的基础上，阐述了用于水声信号数据采集系统的设计原则。
On the basis of analyzing the characteristics of underwater acoustic signals, this paper elaborates the principles of designing the data acquisition system of underwater acoustic signals.
提出了融合能量代价函数的概念及基于代价函数的小波包能量法，并将其应用于水声信号的识别。
The concept of fusing energy cost function and method based on the function are proposed, the method was used for the recognition of underwater acoustic signal.
海洋混响是水声信号目标检测的主要干扰之一，克服混响干扰一直是水声信号处理的一个重要课题。
As oceanic reverberation is the main interference to acoustic object detection, suppressing the chaos by signal processing is an important task.
仿真结果表明，采用该融合算法对分布式水声信号检测系统进行了优化，可有效提高系统的检测性能。
From simulation results, it is seen that when a distributed underwater signal detection system is optimized by using this fusion algorithm, the performance of the system can be improved significantly.
实时数字信号处理是声纳系统中的重要组成部分，通过对水声信号的分析处理完成对目标的搜寻和测量。
Real time digital signal process is an important part of sonar system. This part searches and measures targets by processing sound signal.
宽带阵列信号处理是水声信号处理的一个主要研究方向，但是宽带水声信号的处理远比窄带信号复杂的多。
Broadband array signal processing is a main direction of underwater acoustic signal processing, but the broadband signal processing is more complex than that of narrowband.
文中分析了水声基阵接收信号的实数延时模型和复数混合模型，提出了水声信号盲分离算法性能评价准则。
According the real domain algorithms, we present the evaluating criterion to the complex algorithms for blind underwater acoustic signals separation.
介绍了一种基于边缘滤波器，可带中心波长自动跟踪，主要应用于海底水声信号的检测的光纤光栅波长解调器。
An automatic tracing centric wavelength demodulation system based on the edge filter which can measure the wavelength of the narrow-band back-reflected spectrum FBG is described.
通过实验室的模拟器调试和湖试的验证，证明了水声信号处理模块符合系统要求，具备较高的时延估计精度及可靠性。
Through lab simulator test and lake trial, the underwater signal processing module is proved to be satisfied with the system's demand and is with high time delay precision and reliability.
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...
介绍了一种多用途水声信号预处理机的具体设计，详细阐述了各模块电路的设计原理及工程实现，给出了部分电路的原理图。
A design of a multi-purpose hydro-acoustic signal preprocessor is introduced. A detail expatiation of the design principle and engineering realization of the modular circuits are given.
光纤检波器是光纤传感技术在海洋技术上的重要应用，它是目前最理想的水声信号探测装置，在军事反潜战中扮演着重要角色。
The fiber-optic hydrophone based on the optical fiber sensing technology is the most ideal underwater acoustic signal detector at present and plays an important role in military wars.
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.
提出了一种基于软决策融合的水声信号检测融合算法，并结合窄带声呐信号检测系统，给出了融合系统检测性能的计算机仿真结果。
A soft decision fusion algorithm is proposed for underwater signal detection, and its performance for narrowband underwater signal detection is tested through computer simulation.
提高声呐系统中信号处理机的处理能力也迫在眉捷，本文对应用于水声信号处理的声呐原理及算法进行了初步的研究，重点在于工程的实现。
In this paper, the Sonar theory and algorithms which are applied in underwater acoustic signal processing are preliminarily studied and the emphasis is placed on the realization of the system.
通过水池联调和海上实测验证，表明：模拟器除了能够发射CW、LFM等常用的水声信号外，还能够模拟产生具有特定特征的舰船辐射噪声。
Experiments on the test pool and open sea have proved that this simulator could not only transmit acoustic signals like CW and LFM, but also generate ship radiated noise with specific characteristics.
声信号处理，水声通信与网络，声无损检测。
Acoustic signal processing, underwater acoustic communication and network, acoustic nondestructive test.
当研究水声信道和信号在其中的检测效果时，利用本文的结果可以选择最佳的接收方向。
Investigating the channel of the underwater sound and the effect of the signal detection in it, by utilizing the obtained results, the optimum receiving direction can be chosen.
当研究水声信道和信号在其中的检测效果时，利用本文的结果可以选择最佳的接收方向。
Investigating the channel of the underwater sound and the effect of the signal detection in it, by utilizing the obtained results, the optimum receiving direction can be chosen.
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