Ferber G
Neuropsychobiology. 1987;17(1-2):100-4. doi: 10.1159/000118346.
In many situations, EEG recordings cannot be assumed to be second-order stationary. The definition of stationarity is reviewed and the implications of the nonstationarity of the EEG are investigated. Some methods to overcome the problem caused by the nonstationarity are discussed. They include measures of variability, condensed time series and segmentation. The discussion is restricted to FFT spectral estimators and broad-band parameters derived thereof.
在许多情况下，不能假定脑电图（EEG）记录是二阶平稳的。本文回顾了平稳性的定义，并研究了脑电图非平稳性的影响。讨论了一些克服非平稳性所引起问题的方法。这些方法包括变异性测量、压缩时间序列和分段。讨论仅限于快速傅里叶变换（FFT）频谱估计器及其导出的宽带参数。
