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   signals extraction 的翻译结果: 查询用时:0.185秒
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signals extraction
相关语句
  信号提取
     FAULTY IMPULSE SIGNALS EXTRACTION AND DIAGNOSIS OF ROLLING ELEMENT BEARING:A BLIND DECONVOLUTION METHOD
     滚动轴承故障脉冲信号提取及诊断∶一种盲解卷积方法
短句来源
     Blind Signals Extraction based on Neural Network Method
     基于神经网络的盲信号提取
     The independent component analysis (ICA) addresses non-gaussian source signals under amusing independent each other, it performs blind separation for multichannel observed signals. It has widely applied in wireless communication, biological signals extraction, audio signals processing, image processing, noise reducing and so on.
     独立分量分析技术以非高斯源信号为研究对象,在统计独立的假设下,对多路观测到的混合信号进行盲信号分离,已广泛应用于无线通讯、生物信号提取、语音信号处理、图像处理和噪声抑制等领域。
短句来源
  “signals extraction”译为未确定词的双语例句
     Time-frequency method for harmonic signals extraction in chaos
     提取混沌中谐波信号的时频方法
短句来源
     An approach of the harmonic signals extraction from chaotic interference is proposed.
     由混沌信号和谐波信号组合而成的复杂信号的分离方法一直受到关注 .
短句来源
     The paper analysis the time-frequency character of noise and the character signals, give a brief summary of the theory of wavelet packet transform, thus analyze the theory bases of the wavelet packet based method of character signals extraction under noise environment. The simulation validates the good performance of wavelet packet transform in signal and noise separation, thus present a good tool for the wide use of wavelet packet transform in power system analysis.
     文中分析了电力系统中几种常见的噪声和特征信号的时频特性 ,简单介绍了小波包变换的理论和特点 ,分析了利用小波包变换来消除噪声 ,提取特征信号的理论 ,并通过实例验证了小波包良好的抗噪能力 ,为实现噪声环境下特征信号的提取提供了良好的分析方法 ,为电力系统分析和故障检测提供了良好的工具。
短句来源
     A combination method of empirical mode decomposition (EMD) and harmonic wavelet transformation were used for harmonic signals extraction in chaos. Harmonic wavelet transformation to decompose the observed signal into several narrow band signals was conducted first. Then each narrow band signal was decomposed into a number of intrinsic mode function components(IMFs) which was selected according to power spectrum dense,and the harmonic signal was extracted.
     首先采用谐波小波变换将观测信号分解成窄带信号,然后使用经验模态分解方法将每一个窄带信号分解为有限个内禀模态函数(IMFs),根据功率谱密度选取内禀模态函数,提取谐波信号。
短句来源
     The study reveals the software increase the amount of valid data, decrease the amount of work and increase reproducibility of the signals extraction.
     研究结果表明该软件在一定程度上增加了信号处理的有效数据量、降低了工作量,提高了结果的可重复性。
短句来源
  相似匹配句对
     Extraction of abnormal signals from HFCG
     高频频域心电图异常特征的提取
短句来源
     Line Extraction for Broadband Image Signals
     宽带图像信号的直线提取
短句来源
     Keratin and Its Extraction
     角蛋白及其提取
短句来源
     Supercritical Extraction
     超临界萃取
短句来源
     of broadcasting signals.
     主要实现了对异地广播信号的实时监测,录音,数据存储,异常告警等功能。
短句来源
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  signals extraction
Single epoch GPS deformation signals extraction and gross error detection technique based on wavelet transform
      


Spectrum expansion method, a new method for improving the resolution of multi-trace signals, is put forward in this paper. This method is performed in the following steps: (1) take the peak frequency f_p on the amplitude spectrum obtained after multi-trace signal extraction, then convert it into dominant frequency f_d; (2) change the spectrum of signals into a symmetric triangular spectrum of which the peak is f_d, then shift f_d of the symmetric triangular spectrum to its k time position on...

Spectrum expansion method, a new method for improving the resolution of multi-trace signals, is put forward in this paper. This method is performed in the following steps: (1) take the peak frequency f_p on the amplitude spectrum obtained after multi-trace signal extraction, then convert it into dominant frequency f_d; (2) change the spectrum of signals into a symmetric triangular spectrum of which the peak is f_d, then shift f_d of the symmetric triangular spectrum to its k time position on the frequency axis, that is to say, the frequency band is expanded to fc times of its original width so that the seismic signals whose resolution is (k-1) times higher than before are obtained; (3) put the seismic signals whose resolution is (k-1) times higher than before back to their proper positions according to their normal moveouts and the centre position of the window where signals are picked, and pack zeroes on signal-free positions. Thus, the random-noise-free high resolution seismic records are obtained whose resolution Can be controlled by k.

本文提出一个提高多道地震信号分辨率的处理方法——展谱法。该方法首先利用多道地震记录进行地震信号的检测,求出地震信号振幅谱的峰值频率f_,并换算成主频f_d;然后把地震信号的谱改变成以f_d为极值的对称三角形谱;再把此三角形谱的主频f_d向高频方向移动k倍,频带同时扩展到k倍,得到分辨率提高了(k-1)倍的地震信号;最后按检测的地震信号时窗中心点的位置及各道的时差把分辨率提高了(k-1)倍的信号送回相应的位置上,把无信号处充零,于是得到分辨率可控制的(由k决定)而且无随机噪声的高分辨率地震记录。

The author summerizes various kinds of feature signal extraction fromimage signals and their applicable ranges according to the literatures of imagemeasurement at home and abroad and his practice. The indirect binary modeis a new concept proposed by the author. It is applicable to on-line measur-ement of heating workpiece size in furnace,glass bandwidth in flcating tin trough and boundary positions. The advantages and disadvantages of variousmethods and their applying ranges are evaluated.

本文根据国内外有关图象测量方面的文献资料及作者个人的科研实践,就如何从图象信号中提取特征信号的各种方法及适用范围做了综述。间接二值化法是本文作者提出的新概念,它适用于炉内加热工件尺寸和浮法锡槽内玻璃带宽度及边界位置的在线测量。对各种方法的优缺点及其应用范围进行了评价。

The paper introduces an on-line monitoring principle on leakage current of ZuO arresters by using digitized waveform analysis system and its method including signal extraction and one developed transducer. The experiment results are shown.

介绍了利用数字波形分析系统对氧化锌避雷器泄漏电流进行在线监测的原理、方法、信号抽取和研制的一种传感器的特性以及测试试验结果。

 
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