The obtained research results will provide an important reference to reveal the internal relations of the blasting damage of rock mass and the acoustic signals frequency spectrum characters. 研究成果对于揭示岩体爆破损伤与声波测试信号频谱特征之间的内在联系具有一定的指导意义。
A Study on the Separation of Cutting Acoustic Emission Signals by Maximum Entropy Spectrum Method 用最大熵谱法分离切削声发射信号的研究
On-line Leakage Monitor System to Detect Leakage of boiler Tubes using Acoustic Spectrum Analysis Method of Early 声谱分析法早期检测锅炉管漏泄在线监测系统
The error rate model is one of the key indexes of underwater acoustic spread spectrum communications system. 误码率模型是水声扩频通信系统性能的关键指标之一。
Theoretical and Experimental Study on Acoustic Frequency Spectrum Log in a Well Model The 3D Finite Difference Forward Modeling of Multicomponent Induction Log in Vertical Borehole 模型井中声波频谱测井理论与实验考察垂直井多分量感应测井大型三维有限差分模拟
Now, let's talk about the other under via ( end of the) acoustic spectrum sound that is too high for humans to hear ultrasound. 让我们讨论下另一种声谱&声音太高以至于人类无法听到即超声波。
Acoustic signal processing and spectrum analysis of seafloor sediment under temperature perturbation 温度变化下海底沉积物声学测量的信号处理和频谱分析
Underwater Acoustic Spread Spectrum Communication System for CDMA Mechanism 一种支持CDMA机制的水声扩频通信系统
Design and implementation of a FPGA based low complexity underwater acoustic direct sequence spread spectrum communication system 一个基于FPGA的低复杂度水声直扩系统设计
Inversion of Elastic Modulus of Thin Plate Using Acoustic Pressure Transmitting Coefficient Spectrum 应用超声声压透射系数谱反演薄板的弹性模量
Detection of underwater acoustic signals with dual-channel high-order spectrum 高阶谱双通道的水声信号检测方法研究
By analyzing the features of pipelines including wave-guiding and typical acoustic spectrum of manmade damages, a model composed of characters of acoustic wave was established. 研究了管道的导波特性,分析了管道人为破坏的典型声谱特征,建立了能对管道破坏方式进行分类的混合模型。
According to the analysis of the ablated spots by EMS, vaporization of graphite leads to double peaks in the acoustic spectrum and the corrugated surface on the inside surface of the ablated hole. EMS分析烧蚀斑表明石墨的气化导致了烧蚀声谱的双峰结构和在烧蚀孔的内表面上有与光束正交的波纹状表面。
Research evolution of acoustic spectrum logging methods 声频谱测井方法研究进展
Application of OFDM in underwater acoustic spread spectrum communications 水声扩频通信中OFDM技术应用
Detection on Broad-band Modulated Signal of Underwater Acoustic Object Based on High-order Spectrum Purification 基于高阶谱净化的水声目标宽带调制信号检测
The Source of Response Spectrum Peak and Drawback of Acoustic Noise Test Spectrum 响应谱峰值来历与噪声试验谱的缺陷
Study on the Acoustic Field and Its Spectrum Radiated by a Bi-frequency Ultrasonic Focused Piezoelectric Transducer 复频聚焦超声压电换能器声场及频谱的研究
Based on this phenomenon, a new configuration of integrated acoustic RF spectrum analyzer ( IASA) is proposed. 基于上述现象,作者提出一种新形式的集成声学射频频谱分析器(IASA)结构。
Particularly in the field of feature detection and classification of underwater acoustic signals, the time varying spectrum of time frequency analysis gives more useful information to discriminate different types of target signals. 在水声信号的特征检测和分类方面,时频分析的时变谱提供了区分不同类别目标信号的特征信息。
The characteristic of linear and nonlinear responses between arc excited ultrasonic emission and excited frequency was realized by the received signal from the acoustic to the ultrasonic spectrum. 对受激电弧的声发射信号分析表明,从音频到超声频带,电弧声发射与激励频率之间存在着线性响应和非线性响应特征。
Adaptive Doppler Compensation for Underwater Acoustic Spread-Spectrum Communication 水声扩谱通讯中的自适应多普勒补偿方法
In order to find out slight leakage in boilers, to avoid disarranged stopping of boilers or stopping of boilers just after they started, a detecting technology and monitoring system with acoustic spectrum on boilers bearing pipe are developed. 为了早期发现锅炉承压管轻微漏泄点,避免非计划停炉或起炉后再停炉,介绍了声谱分析法锅炉承压管漏泄检测技术。
Acoustic Spectrum Analysis of Shale Mudding Degree 页岩泥化程度的声谱分析
Firstly we introduce the concept of Acoustic Frequency Spectrum, and secondly we design three main frequency ( 10 K, 20 K, 40 K) acoustic transducers in acoustic sonde. 首先介绍了声频谱测井方法的理论基础,在此基础上在声频谱声系中设计了10K、20K、40K三种不同主频的声波探头组合。
The Analysis of Tool Wear Based on the Acoustic Spectrum Character 刀具磨损声谱特征的分析
Try to play the forest of acoustic landscape to vocal music to acoustic spectrum realization way. 尝试了由森林声景观到声乐再到音谱实现播放途径。
Secondly, we study the characteristics of laser-generated acoustic wave form and frequency spectrum. 其次,本论文对激光在非线性机制下激发声波的波形、频谱特性以及激光脉冲重复频率对激发声波的影响做了研究与分析。