Abstract： |
A method for producing frame synchronization in ground digital multimedia television broadcast system, of which the frame synchronization signal is composed of a front synchronization, a PN series and a back synchronization, includes steps as: (1) to create a eight steps m series by Fibonacci type linear feed-back shift register, (2) to select a sixteen steps Wolsch code word by DMB-T network supervisor as a base station (emission station), (3) to expand the sixteen bit Wolsh code to a vector of 256/304/384 position by duplicating each, "1" and each "0" 16/19/24 times according to the big or small or front synchronization/back synchronization in PN series, (4) to carry out one position by one position exclusive OR (XOR) to the vector produce by step (2) and the frame synchronization series to be coded to establish the frame synchronization series of Wolsh spread spectrum coding. |
Relevancy information
