acoustic pattern
英 [əˈkuːstɪk ˈpætn]
美 [əˈkuːstɪk ˈpætərn]
网络 声波图
双语例句
- Of these, 40% told census-takers they were Muslims
这些人当中，有40%的人告诉人口普查员说自己是穆斯林。 - Recover the acoustic wave impedance coefficient from the incomplete data of the far field pattern
利用远场模式的不完全数据反演声波阻尼系数 - The Research of Characteristics of Acoustic Emission Signal Extraction and Pattern Recognition in Timber Milling
木材铣削加工声发射信号的特征提取与模式识别的研究 - Research on Doppler-resisting differential decoding in underwater acoustic time pattern delay shift coding communication system
Pattern时延差编码水声通信抗多普勒的差分解码研究 - Acoustic Emission Analysis and Pattern Recognition on Hydrogen Induced Cracking of Mild Steel
低碳钢氢致开裂声发射信号分析与模式识别 - Auditory neuropathy identification using evoked otoacoustic emission signals Acoustic Emission Analysis and Pattern Recognition on Hydrogen Induced Cracking of Mild Steel
用瞬态诱发耳声发射信号识别听神经病低碳钢氢致开裂声发射信号分析与模式识别 - The radiation directivity of a complicated conformal array of underwater acoustic transducers is presented based on the boundary element method. It includes the element directivity of each transducer, the natural beam pattern and the controlled beam pattern of the transducer array.
用边界元方法，给出了水声发射换能器共形阵各阵元的单元指向性以及基阵的自然波束指向性和束控波束指向性。 - Tikhonov regularization numerical method for recovering the shape of an obstacle from the information of time harmonic incident acoustic wave and far field pattern of the scattered wave with frequency in the resonance region is investigated.
用Tikhonov正则化方法数值求解由声波散射场的远场模式信息来再现散射物边界形状的反问题。 - The boundary element theory together with optimization method is used to calculate the vibration velocity weighting vector of a complicated conformal array of underwater acoustic projecting transducers for an expected beam pattern.
用边界元理论结合优化方法计算了水声发射换能器共形阵在期望辐射方向性下的振速加权向量，提出了振速的2种加权方式，并给出了计算实例。 - First introduces the basic principle of speech recognition, then expatiate the basic principle and algorithm of the hidden markov models from feature extraction, acoustic model and pattern matching three aspects. Introduce finally the realization of the embedded speech recognition system based on hidden markov models.
文中首先介绍语音识别的基本原理，然后从特征提取，声学模型和模式匹配三个方面阐述隐马尔科夫模型的基本原理和算法，最后介绍了基于隐马尔科夫模型的嵌入式语音识别系统的实现。 - The b-value of acoustic emission for the sample with λ-pattern cracks and the physical significance of the frequency-magnitude relation
入字式断层声发射b值及震级-频度关系的物理意义 - The results show that the acoustic 'emission process of concrete material is of obvious fractal characteristics, and the different fractal characteristic parameters of acoustic emission in the critical state show some "identification pattern" which can be used to identify the characteristics of critical fracture.
研究结果表明，混凝土材料的声发射过程不仅具有明显的分形特征，而且在临界状态下，各声发射分形特征参数都表现出一定的异常模式，这种识别模式可以作为材料出现临界断裂的识别特征。 - In order to cope with mud cake problem in acoustic logging, we produced the synthetic waveform of full acoustic wave train by using Biot's wave theory in porous formation and Johnson's dynamic permeability pattern.
根据Biot提出的孔隙地层的波动理论，采用Johnson动渗透率模式，针对测井中泥饼问题，计算出声波全波列的合成波形。 - 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。 - Then, two optimal algorithms for global optimization are proposed. One is the genetic algorithm for constructing acoustic field pattern control and the other is the eigenvector algorithm for the same purpose.
在对空间声场提出合理的优化目标函数后，提出了两种优化算法进行全局寻优：一种是遗传算法构造的声场模式控制算法； - There are mainly four methods for locating acoustic emission sources on curved surface and three dimension structures including time arriving, zone, correlation and pattern recognition.
曲面和三维结构的声发射源定位方法主要有时差定位法、区域定位法、相关关系定位法和模式识别定位法。 - Based on the analysis of the acoustic interference phenomenon, that the interference pattern is hyperbola cluster is deduced.
之后，以干涉声场分析为基础，分析了水面舰船干涉条纹的双曲线簇分布规律，目标运动的状态（包括速度、深度和水平距离）将决定双曲线簇的形状。 - The design of the ppm-ptc acoustic transmission pattern in the telemetering system for the protection potential of the subsea pipe-line
海底管线保护电位遥测系统中PPM-PTC水声传输方式的设计 - Acoustic emission testing of nucleated glass was carried out in Vickers indentation test. The signal regularity of acoustic emission was consistent with Lawn's motion mode of indentation median crack pattern.
对微晶玻璃的Vickers压痕试验进行声发射检测，声发射信号规律与Lawn提出的压痕中位裂纹运动模式相符合。 - The Neural Network of Acoustic Emission for Pattern Recognition
声发射神经网络模式识别 - Acoustic Target Recognition Based on Biomimetic Pattern Recognition
基于仿生模式识别的地面声目标识别方法 - However, a directly synthesis method of the acoustic field based on the pseudo-inverse matrix can produce the multiple-focus field pattern. It provides a method for controlling acoustic field patterns.
采用基于伪逆矩阵的声场合成算法，直接形成了多焦点的控制模式，为焦域控制提供了新的思路。 - In view of the automatic recognition problem of acoustic targets under the condition of very indetermination background, a kind of fuzzy pattern recognition system based on fuzzy synthesis judgment was designed.
针对复杂背景条件下声目标的自动识别问题，设计了一种基于模糊综合评判的声目标识别系统。 - Study of 4-channel underwater acoustic communication based on pattern time delay shift coding system
Pattern时延差编码四信道水声通信技术研究 - Reactive ion beam etching technique has been effectively used to study and fabricate large-scale and ultra large scale integrated circuit, acoustic surface wave device, magnetic bubble device microwave device, integrated optical circuit, superconducting device, shimmer optical pattern etc.
反应离子束刻蚀技术已有效地用于研究和制造大规模和超大规模集成电路，声表面波器件，磁泡存储器，微波器件，集成光路，超导器件，闪烁光栅等。 - The ways of four-point bend test and acoustic emission were used, the failure pattern ( cohesive failure, coating debonding) of Ni-P electroless plating and composite plating that varied with the heat treatment temperature were obtained.
采用四点弯曲-声发射方法，对随热处理温度变化的Ni-P（Re）化学镀层及其复合镀层的失效形式（内聚失效、镀层脱粘）、启裂载荷和启裂挠度进行了检测。 - Acoustic emission signals with transient and random, which are made up of a series of signals rich in frequency and pattern, belong to non-stationary random signals.
声发射信号具有瞬态性和随机性，并且是由一系列频率和模式丰富的信号组成。属于非平稳随机信号。 - Algorithms in the field of underwater acoustic image processing and pattern recognition are studied and developed in the thesis.
本论文主要进行水声图像处理和模式识别领域的算法研究和开发。 - In the acoustic decoding stage, multi-space probability distribution based HMM ( MSD-HMM) is adopted to model tone pattern, which resolves the problem that tone feature is discontinuous in the whole utterance.
在声学解码阶段，提出采用基于多空间分布的隐马尔可夫模型来对声调进行建模，解决了其特征不连续的问题。 - We classify the forest landscape resources classification as nine categories of acoustic landscape forest by GIS information database base on the forest structure and spatial pattern classification, 2.
利用GIS信息库根据森林结构及空间格局分类，将森林声音景观资源分类为九类森林声景观。