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数字信号分析
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  digital signal analysis
     Research on Digital Signal Analysis Based on LabWindows/CVI
     基于LabWindows/CVI的数字信号分析研究
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     This method is based on digital signal analysis and time series modeling analysis, and can be applied to detection of measurement signal in engineering, analysis instrument or system.
     这种基于数字信号分析和时序建模分析的方法 ,非常适应于工程测试信号检测、分析仪器和系统的诊断 .
短句来源
     It brings forward a designing method of digital signal analysis apparatus based on virtual instrument.
     提出一种基于虚拟仪器技术的数字信号分析仪器的设计方法。
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     With the experimental verification, this method satisfies the needs of the simulation and the dynamic digital signal analysis.
     经过实验验证,该方法可以很好地满足仿真和动态数字信号分析的需要。
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     And then obtaining the system modal characterstic by analog signal analysis or digital signal analysis.
     然后通过模拟信号分析或数字信号分析得到系统的模态特性。
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  “数字信号分析”译为未确定词的双语例句
     The method of digital signal processing in auditory evoked potential review research
     听觉诱发电位回顾性数字信号分析的研究方法
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     Development and Application of Torsional Vibration Digital Signal Processing System
     扭转振动数字信号分析系统的开发研究和应用
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     The damping ratio D of a machine tool vibration system is determined usually from the resonance curve by equation D=(ωb-ωa)/2ω0. In this paper, two other methods are introduced to improve the accuracy of determining the damping ratio on the digital signal analyzer.
     机床振动系统的阻尼比通常是根据幅频特性曲线用公式 D=(ωb-ωa)/2ω0求 得的. 本文试用另外两种方法,以求在使用数字信号分析仪时.提高测定阻尼比的精确 度。
短句来源
     This paper provides design principle, simulational result and application of decimation filter.
     本文给出了在 Lab VIEW平台上所进行数字抽取滤波器的设计原理、仿真结果和在动态数字信号分析中的应用。
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     Study of Digital Signal Processing Based on Discrete Fourier Transform and Wavelet Transform and Their Application in Modern Instrumentation Platform
     基于DFT和小波变换的数字信号分析的研究及其在现代仪器平台中的应用
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     NET, it is obtained by the characteristic analysis of the preparatory service army equipment.
     分析.
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     ANALYZE
     分析
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     Analysis for the Digital Signal Spectrum
     数字信号频谱问题的分析
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     Development of Digital Signal Analyzer Personal Instrument
     数字信号分析个人仪器的研制
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  digital signal analysis
Method of optimizing the sampling frequency in analog-to-digital signal analysis
      
The proposed method has its theoretical basis in digital signal analysis and, from a methodological point of view, it can be considered as an extension to digital images of the wellknown white light speckle photography technique.
      
Dick Grote has been in the digital signal analysis lab since he joined HP in 1969.
      


The damping ratio D of a machine tool vibration system is determined usually from the resonance curve by equation D=(ωb-ωa)/2ω0. In this paper, two other methods are introduced to improve the accuracy of determining the damping ratio on the digital signal analyzer. In order to compare the deviation of the damping ratio determined by different methods, a series of measurements have been made on a milling machine and some testing models.

机床振动系统的阻尼比通常是根据幅频特性曲线用公式 D=(ωb-ωa)/2ω0求 得的. 本文试用另外两种方法,以求在使用数字信号分析仪时.提高测定阻尼比的精确 度。为了对比用各种方法测定阻尼比的偏差大小,在铣床和一些结构模型上进行了 一系列的测试.

This paper gives following ten articales of mathematical and logical modes by using digital signal technique for engine noise analysis.They are equal bandwidth, equal percent bandwidth and equal logarithmic ratio bandwidth(octave band and 1/8 octave band)frequeney spectra and calculations of overall noise power level and the analysis of rotating rate traces,order ratio,specially selected freque- ncy range spectrum,time spectrum and rotation rate spectrum. These methodes have advantages for digital analysis of...

This paper gives following ten articales of mathematical and logical modes by using digital signal technique for engine noise analysis.They are equal bandwidth, equal percent bandwidth and equal logarithmic ratio bandwidth(octave band and 1/8 octave band)frequeney spectra and calculations of overall noise power level and the analysis of rotating rate traces,order ratio,specially selected freque- ncy range spectrum,time spectrum and rotation rate spectrum. These methodes have advantages for digital analysis of engine noise in computer operations,and are also applicable for dynamic analysis of the system vibrations.

本文应用数字信号分析方法,给出了以下10种发动机噪声分析的数学及逻辑模型,它们有等带宽频谱、等百分比带宽频谱、等对数比带宽频谱(倍频程及1/3倍频程)、总声功率级的计算,转速跟踪分析、阶次比分析、特定频带谱分析、时间谱分析和转速谱分析等等。这是应用计算机进行发动机噪声数字分析的基础,当然,对于系统振动的动态分析也有参考意义。

In the arlicle, hammering is used for the measurement. The data of a function of the frequency got from JR2 manipulator are handled by the analytical instrument of figure i formation and all parameters of the organization system are known by the computer with complex modelstate theory, and what is more, the spccific property of the moving state is analyzed.

本文采用锤击法测量,经数字信号分析仪处理得到JR2机械手频响函数数据;再根据复模态理论应用计算机识别出全部结构系统模态参数;并进行了动态性能分析研究。

 
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