2) Frequency Non-Stationarity
频率非平稳特性
3) Nonstationarity
['nɔnsteiʃə'næriti]
非平稳性
1.
For the nonstationarity and spectrum chaos of the bearing vibration signal,threshold de-noising based on wavelet decomposition was put forward.
针对轴承振动的非平稳性特点和频谱成分的混杂性,提出了基于小波的信号自适应阈值降噪法。
2.
Base on that,the application of wavelet transformation in fault diagnosis to analyse nonstationarity of roller bearing vibration signals with Daubieches wavelet is introduced.
以旋转机械轴振动信号为仿真分析对象,以Daubieches 5阶小波作为基小波,介绍了小波变换在故障诊断的信号非平稳性分析中的应用,并给出了奇异点检测和瞬态过程检测的仿真示例,体现了小波变换在故障诊断领域对非平稳信号的时域局部细节的刻划能力。
4) non-stationary
非平稳性
1.
The purpose of this paper is to study on seismic reliability of watersupply pipes under non-stationary earthquake.
目的研究给水管道在地震作用下地面运动具有很大非平稳性时的可靠度。
5) non-stationarity
非平稳性
1.
This paper discusses a convolutional blind source separation algorithm based on second-order decorrelation, taking into account non-stationarity of signals.
结合信号的非平稳性,利用二阶解相关原理,文章阐明了一种在频域实现卷积混合的盲源分离算法,并且考虑了噪声对分离性能的影响。
补充资料：非想非非想处天
1.佛教语。即三界中无色界第四天。此天没有欲望与物质﹐仅有微妙的思想。
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