The Application of Wavelet Analysis and Time Series in Ionosphere TEC Forecasting
Xia Ming-qing · Anhui nongye kexue · 2012
The wavelet analysis and times series were applied for ionosphere TEC forecasting,TEC data was decomposed on wavelet frequency channel by wavelet decomposition,the discrete wavelet coefficients correspond to wavelet frequency were obtained.De-noise processing and mathematical transformation was used to get stable data.By time series prediction,predictive value was got.Finally,practical predicting results were obtained.Five days with 480 sample points were predicted in wavelet analysis and times series,the accuracies with 80% and 90% were accounted for 87% and 57%,respectively,compared to traditional prediction model,the accuracy was greatly improved.