现代电子技术2012，Vol.35Issue(11)：11-13,3.
基于短训练序列的符号同步改进算法及其实现
Improved symbol synchronization algorithm based on short training sequence
摘要
Abstract
When the cross-correlation of short training series (STS) is adopted to realize symbol synchronization in burst orthogonal frequency division multiplexing (OFDM) systems, there is a large amount of self-correlation and cross-correlation calculation of STS to be needed. In this paper, a low-complexity improved symbol synchronization algorithm based on the self-correlation of STS is proposed. The simulation results show that bit error rate performance of the algorithm under Rayleigh fading channel reaches less than 10-3, meaning that the systems can communicate properly. When designing the hardware, RAM was used instead of shift-register, multiplexing of multiplier and accumulator, and formula simplification to reduce the area of the circuit. The results dedicate that this design decreases the use of FF resources by 75% and LUTs resources by 22%.关键词
OFDM/符号同步/短训练序列/自相关Key words
OFDM/symbol synchronization/short training sequence/self-correlation分类
信息技术与安全科学引用本文复制引用
陈佑红,张科峰..基于短训练序列的符号同步改进算法及其实现[J].现代电子技术,2012,35(11):11-13,3.基金项目
国家重大科技专项课题:新一代宽带无线移动通信网(2010ZX03007-002-02) （2010ZX03007-002-02）
