The NLOS sound signal usually arrives at acoustic array by diffraction, and the diffracted transmission path is a geodesic according to the extensive Famat's principle.
非视距声信号通常经过绕射到达基阵，根据广义费马原理，传播路径为一条短程线。
Because the system has the characteristics of the high integration, excellent portability and expansibility, it is applied to the underwater acoustic array signal acquisition and processing.
该系统集成度高，具有良好的便携性和可扩展性，在水声基阵信号采集与分析中广泛应用。
We investigate the method to create the noise field of the underwater by using numerical simulation. The method has been applied to designing the optimal array gain of underwater acoustic array.
研究了在水声基阵设计中用数值模拟产生海洋环境噪声场的方法及其在水声基阵最佳加权系数和最佳阵增益设计仿真中的应用。
For even better performance, the number of acoustic drivers can be increased, for example, to six as in second line array 44.
为了更好的性能，可以增加声学驱动器的数量，例如增加到如第二线性阵列44所示的六个。
The line array may also include other acoustic elements, such as ports or passive radiators.
线性阵列也可以包括其它声学元件，例如端口或无源辐射体。
Another useful sensor array is the microphone array, or acoustic camera.
其他很有用的传感器阵列就是麦克风或声学照相机。
A new passive and wireless Surface Acoustic Wave (SAW) sensor array is introduced.
介绍了一种新型的无源、无线声表面波传感系统。
The results show that the annular array in different combination and excitation condition has radiation characteristics of monopole, dipole and quadrupole of acoustic logging.
实验结果表明，在不同组合和激励条件下，圆弧阵具有声波测井的单极子、偶极子和四极子声源的辐射特征。
Compared with traditional ultrasonic probe, ultrasonic phased array probe can realize transition, deflection and dynamic focusing of acoustic beam under electronic control.
与传统的超声波探头相比，超声相控阵探头可以实现电子控制下的声束平移、偏转与动态聚焦。
In contrast to the conventional line array of FIG. 2, line 36 intersects only one corresponding point (the center of the dust cover) of all the acoustic drivers of the line array.
与图2中的传统的线性阵列相比，线36仅与线性阵列的所有声学驱动器的一个对应点(防尘罩的中心)相交。
With the perfect characteristics of acoustic vector sensor in the low frequency band, accurate DOA estimation is achieved with small array size.
利用矢量传感器在低频段的良好特性，实现了小尺寸声阵条件下的高精度目标DOA估计。
The experiment results also show that the frequency hopping mode based on the COSTAS array is suitable for multi-target underwater acoustic positioning.
试验结果也证明了采用这种基于COSTAS阵列的跳频工作方式较为适合水下多目标声学定位。
The direction of acoustic beam and angular width of main lobe can be changed by properly amplitude-weighting, decreasing the frequency of impulsive signal and adjusting the interval of array elements.
通过适当的幅度加权、降低激励信号的频率、调整阵元的间距等措施可以改变辐射声束的方向和辐射主瓣的角宽。
Optimization design of amplitude weighting for linear phased array acoustic transmitters in acoustic well logging was studied.
对声波测井相控线阵声波辐射器进行了幅度加权的优化设计。
FIG. 9e is an enlarged isometric view of the arrangement of some of the acoustic drivers of the line array of FIG. 9a.
图9e是图9a的线性阵列的一些声学驱动器的设置的放大等轴测图。
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。
Acoustic vector sensor with the electronic rotating directivity of dipole can effectively detect signal in the background of noises. More information can certainly be obtained by vector sensor array.
单矢量传感器具有可电子旋转的偶极子指向性，声压、振速信息联合矢量信号处理在噪声背景下有良好的探测能力，矢量(传感器)阵能取得更好的能力。
FIG. 9b is an enlarged front view of the arrangement of some of the acoustic drivers of the line array of FIG. 9a.
图9b为图9a的线性阵列的一些声学驱动器的设置的放大主视图。
This software can compiled array acoustic logging documents to normal text files.
该软件可以将阵列声波测井文件解编成普通文本文件。
The paper analyzes various methods of target location, and presents a method of acoustic target location with a dual righttriangle array.
文章对目前常采用的定位方法进行了分析，提出了用双直角三角形阵对声目标进行定位。
According to acoustic localization technology, we can get hail clouds localization by using "cross array with five sound sensors", and get the distance by the time delay between lightning and thunder.
同时，根据声测定位技术，利用“五元十字阵”可以得到雷声声源的空间方位。
Finally summed up the array acoustic waveform denoising features.
最终总结出了针对阵列声波波形去噪方法特点。
After this we analyzed and summarized monopole and dipole array acoustic waveform data under the different strata.
在完成对数据的解编之后，分析并总结在不同地层情况下阵列声波单极子和偶极子的波形特征。
This paper presents the research on the interferometric fiber-optic sensor's PGC scheme which is suitable for the construction of the acoustic sensor array.
对适用于干涉型光纤水声传感器阵列的PGC（相位载波）调制—解调单元光纤水声传感器进行了研究，分析得出了光纤水声传感器PGC检测新的带宽要求；
By applying the new concept to describe the output of an acoustic vector array, a new model of pseudo analytic acoustic energy flux (PAAEF) is established.
并将这个新概念用于描述声矢量阵输出，得到了一种新的矢量阵输出模型“伪解析声能流”。
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。
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。
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