Methods of time series preparation based on UTC and UTCr scales for predicting the [UTC-UTC(PL)]

The article presents the results of methods of preparation of two time series on the quality of predicting the [UTC-UTC(PL)] for the Polish Timescale UTC(PL) using GMDH neural networks. The first time series (TS1) was based on the [UTC-UTC(PL)] deviations designated by the BIPM. In the second time series (TS2) the deviations designated by the BIPM on the basis of the UTC and UTC Rapid scales were applied. The obtained results indicate that the use of time series for predicting the [UTC-UTC(PL)], based on deviations determined by the UTC and UTC Rapid scales, allowed to obtain more accurate predictions.