METHOD OF SELECTING DIGITAL STREAMS Russian patent published in 2019 - IPC G10L19/87 G06F17/10 G10L15/02 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering, particularly to radio networks for transmitting data and high-frequency voice messages. Technical result is achieved by additional determination of linear relationships between elements of truncated sampling of autocorrelation function r_M={r₀, r₁, r₂, …,r_M-1}, M<N, N is number of bits in DS y, based on calculating mean-square error (MSE) E_m linear prediction (LP) and values of linear prediction coefficients (CLP) {a_m}_M, m = 1, 2, … M, where M determines order LP, and decision on used in DS form of communication is received on a set of events: exceeding value MSE LP E_M threshold value E_thr1=0.2 and presence in set CLP {a_m}_M global minimum with value , serial number m of which coincides with one of the values of volume N_b, N_b=M-1, packet DS, which corresponds to receiving a voice message. Otherwise, the decision to receive text or an image is received based on threshold processing results with E_thr2=0.1. Fulfillment of condition E_thr2>0.1 corresponds to receiving an image, otherwise – to receive text.

EFFECT: technical result consists in improvement of probability of correct selection DS, under conditions of a priori uncertainty about their parameters and structure, shape of control frame.

1 cl, 6 dwg, 1 tbl