LUO Ren-ze, JING Long-jiang, CHENG Xian-tao, et al. Novel Frame Synchronization Algorithm for Improving the Performance of the European DVB-T System Using Superimposed PN Sequences with Low Power[J]. Acta Electronica Sinica, 2005, 33(7): 1311-1313.
LUO Ren-ze, JING Long-jiang, CHENG Xian-tao, et al. Novel Frame Synchronization Algorithm for Improving the Performance of the European DVB-T System Using Superimposed PN Sequences with Low Power[J]. Acta Electronica Sinica, 2005, 33(7): 1311-1313.DOI:
A novel algorithm has been proposed for the European DVB-T 2K system so as to achieve frame synchronization before the timing synchronization and frequency synchronization and improve the performance of the system in the high-speed mobile multi-path fading channels. In the algorithm the combined correlation detection method has been employed
where the autocorrelation of the superimposed training sequence with the power of 1.41% of the total transmitter power and the cycle characteristic of the guard interval are employed to produce the synchronization signal. Computer simulation shows that the performance of frame synchronization is better than that of the conventional scheme in DVB-T systems with mobile speed from 150km/h to 450km/h. In additional
the superimposed PN sequence exerts little influence on the performance of the system.