摘要
在H.Minn算法的基础上,提出了一种带极性重复训练序列的OFDM联合时频同步方法,归纳了利用带极性重复训练序列进行定时和频偏估计的统一公式.改进算法的定时测度只有一个尖峰,它克服了SC算法的定时测度平台问题和H.Minn算法的多峰值问题,提高了定时同步的精度,其结构特点也为频偏估计提供了灵活性,进一步提高了频偏估计的性能.
Follow the H.Minn algorithm,put forward an OFDM time and frequency synchronization method based on training sequence with polarity,summarize the time and frequency estimation unified formula.The modified algorithm＇s timing curve have only one peak,overcome SC algorithm＇s timing plateau and H.Minn algorithm＇s multi-peak,thus improve the accuracy of timing synchronization,the characteristics of its structure also provides flexibility for the frequency estimation,further improve the frequency estimation performance.
出处
《郑州大学学报（工学版）》
CAS
北大核心
2012年第1期125-128,共4页
Journal of Zhengzhou University（Engineering Science）
基金
国家装备预研基金资助项目(9140A25050106JB3412)
