Frame Synchronization Algorithm for Mobile DVB-T

摘要

In the conventional schemes based on pilot and the guard intervals, frame synchronization couldn’t been achieved for DVB-T with high mobile speed. In this paper, two novel frame synchronization schemes based the training sequence/Barker code with very lower power were proposed and compared for European DVB-T 2K systems to improve the mobile performances. The performances of the proposed schemes were presented in terms of correct synchronization probability and false alarm probability achieved by simulations. Both the estimators here designed to achieve better frame synchronization in Rayleigh fading channels with mobile speed 150 km/h, especially where the second scheme could achieve 99.9% correct frame synchronization probability with SNR 5dB. Simulation results also showed that the superimposed training sequence/Barker code had a significantly smaller effect on system performance. Obviously, the proposed schemes are much better than the conventional schemes.