现代电子技术2018，Vol.41Issue(2)：14-17,4.DOI:10.16652/j.issn.1004-373x.2018.02.004
基于训练序列的SC-FDE系统定时同步改进算法
Improved timing synchronization algorithm for SC-FDE system based on training sequence
摘要
Abstract
As the timing synchronization metric function obtained by the Minn algorithm produces multiple sub-peaks with little difference at the wrong timing synchronization points and the peak values form slowly,causing fuzzy symbol location points and timing synchronization errors,an improved algorithm based on Minn algorithm is proposed,proceeding from the SC-FDE synchronization technology. This algorithm takes advantage of the ZC(Zadoff-Chu)training sequence which has good self-correla-tion characteristic to take place of the original PN sequence. The repeated frame structure is changed to the central-symmetric form,and the training sequence is correlated many times to improve its precision. The Matlab simulation for the two algorithms was carried out. The results show that the improved algorithm has very shape timing metric peak and lower root mean square error (RMSE)in the same condition.关键词
无线传输/低信噪比/单载波频域均衡/训练序列/帧结构/定时同步算法Key words
wireless transmission/low signal-to-noise ratio/SC-FDE/training sequence/frame structure/timing synchro-nization algorithm分类
信息技术与安全科学引用本文复制引用
何裕舒,郭浩,张阳..基于训练序列的SC-FDE系统定时同步改进算法[J].现代电子技术,2018,41(2):14-17,4.基金项目
国防预研项目(6141B04050101)Project Supported by Defense Pre-Research(6141B04050101) （6141B04050101）
