-SCDMA上行同步检测改进算法研究

Uplink synchronization is one of the key technologies in TD-SCDMA system,which can reduce the interference between users to the largest degree. And the overall system performance has a direct relation on the performance of uplink synchronization.This paper mainly studies the uplink synchronization detection algorithm in TD-SCDMA system. It first analyses the principles of the correlation algorithm between received data from eight antennas and eight Uplink synchronous sequences.To improve the efficiency of real-time processing, the paper proposes an improved algorithm which premergers the data received from different antennas,based on the original algorithm.According to simulation,it can reduce the computational complexity, the running time of proposed algorithm reduced into 1/6 of that of the original ones.It also greatly improves the efficiency of real-time processing in the case of ensuring accuracy.