1) cepstrum envelope analysis
倒谱包络分析
2) envelope analysis
包络谱分析
1.
Introduces the wavelet analysis and the application of wavelet analysis and envelope analysis in the speed reducer,take advantage of fault always happens with the output signal sudden change,use Hilbert envelope and take spectrum analysis,it proved that wavelet analysis and envelope analysis has the superiority,realizes the purpose of fault diagnosis.
介绍了小波分析方法,以小波分析和包络谱分析在故障诊断中的应用为例子,利用小波分析信号突变的特点,利用Hilbert包络并进行频谱分析,体现了小波包络谱分析的优越性,实现故障诊断的目的。
3) Cepstrum analysis
倒谱分析
1.
The two methods is time domain analysis and cepstrum analysis.
本文采用倒谱分析和HHT分析的方法对鱼类声信号进行了分析并进行特征提取。
2.
The cepstrum analysis method is not only applicable to the broadband signal, but also applicable to the narrowband signal.
采用的倒谱分析方法对宽带信号与窄带信号不仅具有良好的估计性能,且在信噪比满足一定要求的前提下,对窄带信号倒谱估计器在广义倒谱相关函数中比相关器在广义互相关函数中具有更尖锐的峰,从而提高了时延估计精度。
5) Mel-scaled cepstrum analysis
Mel倒谱分析
6) envelope analysis
包络分析
1.
Approach to extraction of incipient fault features based on wavelet correlation filter and envelope analysis;
基于小波相关滤波-包络分析的早期故障特征提取方法
2.
Application of envelope analysis for UWB signal acquisition;
包络分析在超宽带信号采集中的应用
3.
High frequency subband signal with amplitude modulation,separated by wavelet transform and fast ICA,is further analyzed by envelope analysis to diagnose bearing faults.
轴承故障诊断时,传感器采集的故障声音信号一般含有多个故障源,且源信号之间统计相关,应用传统的独立分量分析受到限制,本文应用多分辨率子带分解的独立分量分析方法(MSD-ICA),针对小波变换快速独立分量分析分离出的高频子带信号常呈现调制特性,提出进一步结合包络分析(EA)方法分析该子带信号,来判定故障的类型与部位。
补充资料：倒包
1.冒名顶替。 2.指受雇假冒身份，代人服役应差。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条