CYCLE SYNCHRONIZATION METHOD FOR SIGNALS WITH A CYCLE CONCENTRATED OR DISTRIBUTED SYNCHROGROUP Russian patent published in 2022 - IPC H04L7/08 

FIELD: communication technology.

SUBSTANCE: invention relates to the field of telecommunications. The search for a CA or the restoration of synchronism by cycles is performed by summing at each position of the cycle not the responses of the synchro signal recognizer, but summing all symbols similar to synchro group synchro symbols, using full synchro information about each synchro group synchro symbol, true and false. An increase in the accuracy of estimating the probability of an error of the POC synchro symbol is experimentally achieved by counting not the number of D distorted responses of the synchro signal recognizer during S cycles, but the number of D’ distorted synchro symbols of synchro groups during S’ cycles. Reducing the search time of the CA, if there was a failure of synchronism in cycles, and reducing the probability of false triggering of the decisive node after restoring the communication channel when the signal disappears or a relatively long exposure to powerful interference in the signal reception area is achieved by zeroing the memory block of the decisive node and the block of shift registers when any summation result is achieved at any of the N positions of the acceptable value cycle.

EFFECT: reduction in the search time of the cyclic sync signal of the CA and an increase in the accuracy of its detection.

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