中文摘要：

正交频分复用（OFDM）作为未来移动通信的主导技术，其同步仍是需要研究的重要课题．针对Schmidl＆Cox同步算法在符号定时同步估计中的不准确性，提出对训练序列作符号同步相关运算的滑动窗口进行改进，仿真表明所提方法的有效性．

英文摘要：

Orthogonal Frequency Division Multiplexing （OFDM） is the dominant technology of the future mobile communication and its synchronization is still an important subject need to be studied. Contraposed to the inaccuracy of the Schmidl ＆ Cox Synchronization Algorithm in the symbol timing synchronization estimation, we propose an improvement of the sliding window that take symbol synchronization correlation operation on the training sequence. The simulation results show the effectiveness of the proposed method.