METHOD OF RECOGNITION OF NEW LOW BIT RATE CODING PROTOCOLS Russian patent published in 2021 - IPC G10L19/08 H03M13/03 

FIELD: information technology.

SUBSTANCE: invention relates to the field of information technology, namely to the field of digital communication. A recognition method (NSCR) implemented in vocoders is proposed, a binary digital information stream y is received during the time interval ΔT, a normalized autocorrelation function a is formed on the basis of y, a decision is made on the presence of a block structure in the digital information stream, used to describe the input implementation image in the form of a square matrix M of mean values ​​and the corresponding covariance matrices C. Based on the values ​​of _Vjl, a divergence vector _Vj is formed for each j-th reference image. J vectors _Vj form a matrix of divergence values ​​V of dimension J×L, L is the number of bits between the extrema of the autocorrelation function. A decision is made to discover a new previously unknown NSCR protocol and the number J + 1 is assigned to a new reference description.

EFFECT: technical result consists in reducing the probability of a false alarm and, as a consequence, increasing the recognition reliability (the probability of correct recognition) of new protocols (NSCR).

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