At last, we recomposed some frequency band of wavelets, and the results can efficiently extract the features of acoustic emission signal.
最后通过对能反映源特征的频带信号进行重构，这样能更好更有效的提取声发射信号的本质特征。
Filter is used to transmit spectrum of definitive broad band in the continuous spectrum or to extract certain radiation in the line-spectra.
光学滤光片在连续的光谱中用于透过一定宽度的光谱带或在线状光谱中提取某些辐射。
The preprocessor can extract clock information from NRZ data stream, which consists of a delay cell, a multiplier and a narrow-band filter.
预处理器主要有延迟单元、乘法器和窄带滤波电路构成，可以从NRZ数据中得到时钟信号。
This method possesses a powerful property to extract the modulated frequency of resonant frequency band overall.
该方法能将各共振响应频带的调制频率提取出来。
Because of the special advantages of wavelet analysis in signal processing, the paper puts forward the energy band wavelet analysis method to extract the eigenvalues of fault diagnosis.
针对小波分析在信号处理方面的特殊优势，提出以小波频带能量分析的方法来提取故障诊断的特征值。
Self adaptive predictor is used to extract periodic signals with unknown frequencies from wide band random noise background.
自适应预估器能用来提取宽带随机噪声背景中未知频率的周期性信号。
A new method to extract line-spectrum series based on energy criterion and sub-band synthesis is presented in this paper, and verification is further investigated with simulated and measured data.
本文提出了一种基于能量判据和子频带综合的线谱序列提取方法，并利用实测数据进行了比较分析。
The method to extract power character, the measure to find the peculiar frequency band and the results of classification will contribute to the design of an on-line BCI system.
所采用的特征提取方法、特征频段能量确定方法及分类结果都被应用于在线脑机接口系统设计中。
Propose wavelet packet decomposition frequency-band monitoring method, diagnose typical failures of rolling bearing, and extract eigenvector to prepare follow-up Neural network identification.
提出了基于小波包分解频带能量监测法，对滚动轴承的几种典型故障进行了诊断，并且提取特征向量，为后续的神经网络识别作准备。
In order to extract wide-band scattering parameters by one computation, the concept of characteristic impedance is introduced to separate transmitted and reflected voltage waves.
为了在一次计算中抽取宽频带的散射参量，引入特征阻抗的概念用于分离入射电压波和反射电压波；
In order to extract wide-band scattering parameters by one computation, the concept of characteristic impedance is introduced to separate transmitted and reflected voltage waves.
为了在一次计算中抽取宽频带的散射参量，引入特征阻抗的概念用于分离入射电压波和反射电压波；
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