V.A. Aladinskiy, V.A. Nikitenko, A.V. Sheko

The present article is about the to improvement of the procedure of formation of the reference description of classes of high frequencies radio signals in the existing algorithm of their identification on the basis of calculation and processing of time-and-frequency distribution of density of energy. This procedure of formation of the reference description of classes of radio signals allows to choose contrast features of identification from the set of those available for each reference class of radio signals. For this a purpose one introduces measure of distinction of interval estimations of eigenvalues of one reference class of radio signals with the same estimations of other classes which is compared to a required measure of distinction. This article is of interest for experts in the field of the technical analysis and identification of radio signals.