| 摘要 |
FIELD: radio engineering and communication; measurement equipment.SUBSTANCE: invention can be applied to provide synchronisation in minimal time of transmitted and received messages and signals under interference conditions. Selection is performed of synchronisation signal (SS) consisting of three equal-length (capacity presentation) code structures (KK, i = 1, 2, 3), wherein four parallel processing channels are used: in first channel, symbol autocorrelation function (ACF) is determined for sequentially supplied symbols of digital group signal relative to symbols of synchro-word identical copy, which is stored in memory unit at receiving side, in second, third, and fourth channels ACFs are defined and as result of their summation, super-ideal Barker's code is obtained, values of obtained ACFs are compared with set threshold levels, and SS is identified based on comparison results, including SS distorted by interferences during transmission.EFFECT: higher noise-immunity of process of isolating and identifying synchronisation signal under interference conditions.2 cl, 6 dwg |
