FIELD: radio engineering, communication.
SUBSTANCE: scrambling device for parallel frame synchronisation includes a control unit used to successively read a pseudorandom sequence from a data storage device and obtain content which corresponds to parallel data in that pseudorandom sequence, a data storage device configured to store the pseudorandom sequence, which is predetermined, and input content which corresponds to parallel data in the pseudorandom sequence into an XOR unit which performs XOR processing alternately for parallel data which are input successively with content which corresponds to parallel data in the pseudorandom sequence, and then outputs scrambled data. When the bit length of the parallel data is equal to Q, content which corresponds to parallel data in the pseudorandom sequence is Q bits of content, and the length of the pseudorandom sequence is equal to T×Q, and the pseudorandom sequence consists of Q M-sequences of a pseudorandom code, where T is the period of the repetition cycle of M-sequences.
EFFECT: simpler computations.
10 cl, 3 dwg
