1) variance-stationary random signal
方差平稳随机信号
2) Non-Stationary Signal
非平稳随机信号
1.
Removal of Trend from Non-Stationary Signal Based on Wavelet Transformation;
仿真实验表明,该方法简单、高效,适用于非平稳随机信号的处理,是一种实用的趋势项剔除方法。
3) stationary random signals
平稳随机信号
1.
Research on the perfect model of stationary random signals;
平稳随机信号准确模型的研究
4) nonstationary random signal
非平稳随机信号
1.
It is beginning for wavelet transform to be applied to nonstationary random signal processing.
将小波变换用于非平稳随机信号分析与处理 ,目前刚刚开始。
2.
This paper introduces several analysing and processing methods for nonstationary random signals,such as short-time Fourier transform,Gabor transform and wavelet analysis etc.
本文介绍了非平稳随机信号短时傅立叶变换、Gabor变换及小波分析等几种分析处理方法,给出了具体的分析方法及各自的适用范围。
5) nonstationary random vibration signal
非平稳随机振动信号
1.
In view of the disadvantages of the traditional time-varying parameters modeling algorithm about nonstationary random vibration signal of a spacecraft with closed spaced modal frequency,a multicomponent process neural network(PNN) autoregressive model was proposed,which was based on the empirical mode decomposition(EMD).
针对航天器非平稳随机振动信号模态频率密集的特点,提出了基于经验模式分解EMD(Empirical Mode Decomposition)的多分量过程神经网络PNN(Process Neural Net-work)自回归模型。
6) piecewise stationary stochastic signal
分段平稳随机信号
补充资料：随机信号
非确定性信号。即信号值随偶然因素而变化，但又遵从一定概率分布规律。常用平均值、数学期望和方差等进行分析和描述。
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