The core problem of this thesis is to study the different acoustic signal identification methods.
本论文的核心就是研究不同地声目标识别方法。
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set.
每天的报警提醒有关使用一个在您所设定的时间声信号经常性的事件。
Acoustic signal processing, underwater acoustic communication and network, acoustic nondestructive test.
声信号处理，水声通信与网络，声无损检测。
The system includes a microphone for receiving and converting an acoustic signal to an electrical signal.
其中麦克风用来接收语音信号并把它转换成电信号；
When human tissue is irradiated by microwave pulses, there is thermo-acoustic signal due to heat expansion.
人体组织在微波脉冲的激励下，会因热膨胀产生热超声信号。
Aim To extract harmonic frequencies of helicopter acoustic signal as features for helicopter identification.
目的提取直升机声信号谐波频率作为特征用以识别直升机。
Secondly, the paper does much research on water leakage acoustic signal hardware and software process methods.
其次，文中论述了对漏水声音信号的硬件及软件处理方法。
Based on the acoustic signal generated by moving vehicles, this article spread a research on vehicle recognition.
本文基于运动车辆产生的声频信号来进行车型识别的研究。
The data acquisition system fulfils the effective identification of the acoustic signal, picking and transportation.
数据采集器实现了管道泄漏声波信号的有效识别、采集和传输。
This paper introduces a design of high-performance general signal conditioner suitable for acoustic signal receiving.
介绍了一种适宜水声接收用的高性能通用信号调理器的设计思路。
In acoustic signal processing, it is valuable to determine whether a real room acoustic system is nonlinear deterministic.
实际房间声学系统是否具有非线性确定性是声学信号处理中值得研究的问题。
Signal processing in phase space based on nonlinear dynamics theory is a new method for underwater acoustic signal processing.
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。
The intensity of acoustic signal and the spectra of both the optical and acoustic signals were all defined by keyhole behavior.
而等离子体声信号的强度以及光、声信号的频谱分布都受到小孔行为的制约。
Visual information in the speaker's mouth region is also an important speech information source except for acoustic signal source.
除声音信息通道外，唇动视觉信息可以作为一种重要的语音理解源。
Acoustic signal is stability and accuracy, so using acoustic signal to classify objects can expand the field of pattern recognition.
声信号具有稳定、精确的特点，使用声信号作为目标分类可以使模式识别的领域大大的拓宽。
The fundamental principle is that the acoustic signal will be more attenuated in the presence of cement than if the casing were uncemented.
基本原理是声波信号在胶结存在时的衰减比胶结差时的要大。
The design and implementation of an acoustic signal acquisition and processing system used for acoustic field visualization is presented in this paper.
基于虚拟仪器技术设计与实现了一种用于声场可视化的声信号采集与处理系统。
The approach of how to extract underwater acoustic signal with auditory model is studied and the auditory features of ship-radiated noise is extracted.
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 data acquisition subsystem based on AT89C51 acquires multichannel acoustic signal synchronistically and stores digital signals in the Shared memory.
基于单片机at89c51的数据采集子系统完成对多路声信号的同步采集，并把数字信号保存到片外共享存储器中。
Finally, by using ESPRIT harmonic frequencies are extracted from real measured helicopter acoustic signal. All results demonstrate that ESPRIT is superior t…
各种结果均显示谐波恢复的ESPRIT方法在提取谐波频率方面较之其它方法更为优越，用它提取直升机声信号特征是十分有效的。
High signal to noise ratios (SNR) long range microphone, similar to the FOM 1140, intended for operation at low acoustic signal levels and over long distances.
高信噪比的远程麦克风，类似于FOM 1140，用于低噪音信号水平和远距离的运用。
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.
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 theoretical and simulation analysis about acoustic signal processing in multi-path channel and the engineering software design are given in the dissertation.
该系统采用主动工作方式，本文系统地研究了在多途信道中对声学信号进行处理的理论研究和仿真分析及工程软件设计。
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.
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。
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.
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。
In this paper a blind beamforming algorithm based on vector sensor array is presented according to the characteristics of underwater acoustic environment and acoustic signal.
本文针对水声环境和信号的特点，提出了一种基于矢量传感器阵的盲波束形成算法。
In this paper a blind beamforming algorithm based on vector sensor array is presented according to the characteristics of underwater acoustic environment and acoustic signal.
本文针对水声环境和信号的特点，提出了一种基于矢量传感器阵的盲波束形成算法。
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