nonstationarity meaning in English
不固定性
不稳定性
非平稳性
Examples
- Discuss and analyze changing characteristic of berry phase , the berry phase is intimately connected with the nonstationarity of a quantum state
几何相与量子状态的非定态性有直接的联系，定态没有berry相。 - For the nonstationarity of the signal in field , eigenvector of fault is computed with newly advanced wavelet analysis , as the preprocessing in diagnosis procedure
考虑到现场中信号的非平稳性，采用新发展的小波分析工具，提取故障的特征向量，作为诊断过程的预处理。 - The traditional approaches for eeg signal processing are mostly on the time or frequency analysis . but due to the strong randomness and nonstationarity of eeg , the results obtained from those traditional methods are not very satisfying
但由于脑电信号随机性和非平稳性都很强，这些时、频分析方法就有其各自的局限性，很难得到令人满意的结果。 - The time series nonstationarity has relation to system and time scale with which researchers are concerned , and the research of nonstationarity focuses on the fields of the statistics , nonlinear science and time - frequency analysis now
摘要时间序列非平稳度不仅是系统特性的反映，还与研究者感兴趣的时间尺度有关，目前相关的研究集中在统计学，非线性科学和时频分析领域。 - This paper discusses mainly how to apply the varying coefficient regression model in the econometrics , fited by the varying coefficient model , we can not only obtain the well fitted value , but also can explore the nonstationarity in the economical structure explained
摘要文章主要讨论了变系数回归模型在计量经济学中的应用，变系数回归模型不但有很好的拟合效果，而且可以探讨变量之间的经济结构的非平稳性，这是经典的线性回归模型所不能比拟的。