METHOD FOR SHORT-TERM ADAPTIVE PREDICTION OF INTERFERENCE LEVELS IN DECAMETER RANGE WITH VARIABLE PREHISTORY DURATION Russian patent published in 2021 - IPC H04B17/373 

FIELD: radio communication.

SUBSTANCE: invention relates to radio communication technology and can be used in complexes for automated communication, as well as at points of the ionospheric wave and frequency dispatching service of radio centers. In the method of short-term adaptive prediction of interference levels in the decameter range with a variable duration of the history at each of the analyzed frequencies, the interference levels are measured at different lengths of the control intervals. For each duration of the control interval, both the averaged interference values ​​and the sum of the average interference levels and their standard deviations are calculated, based on the results of which these parameters are predicted for small time intervals. After that, the magnitude of the prediction error is estimated and, based on the results of the assessment, the prediction parameter, the duration of the control interval and the adaptive smoothing coefficient for each frequency are selected, which provide the minimum mean square prediction error. Further, with the help of additional measurements and the method of exponential smoothing of interference levels, prediction is carried out with the prediction parameter selected for each frequency, the history period and the adaptive smoothing coefficient.

EFFECT: increasing the reliability of forecasting for some time ahead.

4 cl, 4 dwg