Abstract:
The mathematical behavior model of signal between two next selections of it is suggested. New general formulas for finding the sinusoidal criterion of the greatest deviation are received. The theorem of reduction of Nyquist interval which connects the criterion of the greatest deviation and the size of constant interval of sampling is proved. The results allow to determine the size of this interval reasonably.
Keywords:systems of real time, sinusoidal criterion of the greatest deviation of signal, step or linear approximation of signal on selections, admissible error of approximation, constant interval of sampling of time.