| 摘要 |
FIELD: information technology. ^ SUBSTANCE: from received sequence, fragments of twice double code word length are extracted, based on these fragments matrix is generated, the generated matrix is adjusted to canonic step configuration by writing these fragments in matrix rows, then by permutation of rows, the matrix is obtained where the first non-zero element of row is equal to one, synchronous state of digital data receiver is determined by presence of synchronous state flag. When there is no synchronisation following is performed until it establishes: search for synchronous state with subsequent extraction of new fragments, matrix building based on these fragments, synchronous state presence determination by synchronous state flag. After identification of synchronous state flag, it is considered that synchronous state is achieved. ^ EFFECT: higher code frame synchronisation accuracy. ^ 1 dwg |
