Size curves of cocoon filaments can be regarded as non-stationarytimeseries with finite length varying at random.
茧丝纤度曲线的预测研究茧丝纤度曲线可视为是长度有限且随机变动的非平稳时间序列。
2
The space of prediction and application of non-stationarytimeseries were expanded through the combined model of wavelet analysis, gray and time series prediction methods.
Through ARIMA model and standardization, the nonstationary vibration series acquired in the field were transformed to stationary time series normally distributed.