无线电工程Issue(11)：19-22,37,5.DOI:10.3969/j.issn.1003-3106.2014.11.06
具有鲁棒性和低复杂度的同步算法研究
Research on Synchronization Algorithm with Robustness and Low Complexity
摘要
Abstract
The Orthogonal Frequency Division Multiplexing( OFDM) is so sensitive to time deviation that a perfect synchronization algorithm is needed.To obtain the algorithm with robust performance and low complexity,a new synchronization scheme is presented. Without changing the standard preamble structure of 802.11a/g,this paper focuses on the noise before and after the true transmitted signal received by the receiver.And then,the delayed auto-correlation and differential correlation are combined to finish the task of time synchronization.The simulation results and analysis show that the proposed algorithm owns the robust performance,as well as the low complexity even at low SNR.Thus,it’s applicable.关键词
计算复杂度/差分相关/OFDM/时间同步Key words
computation complexity/differential correlation/OFDM/time synchronization分类
信息技术与安全科学引用本文复制引用
杨志鹏,蒋挺..具有鲁棒性和低复杂度的同步算法研究[J].无线电工程,2014,(11):19-22,37,5.基金项目
国家自然科学基金资助项目（61171176）。 （）
