Abstract:

Aiming at the problem that the accuracy of symbol timing synchronization algorithm is low due to the filter using universal filtered multi-carrier (UFMC) system.A symbol timing synchronization improvement algorithm suitable for UFMC system was proposed.The algorithm considered the influence of the filter on the symbol,and a new training sequence structure for symbol timing synchronization was proposed,and the corresponding formula of the time measure function was given.The new training sequence structure eliminated the platform effect brought by the filter,which improved the timing estimation performance of the algorithm.The simulation results show that the time-measuring function curve of the improved algorithm has a peak at the starting point,which improves the accuracy of the timing estimation.

Key words: universal filtered multi-carrier, symbol timing synchronization, training sequence, timing measure function