WANG Yong, LIAO Gui-sheng, WANG Xi-yuan. Carrier frequency offset and time synchronization estimation based on new autocorrelation over fading channel[J]. 2009, 30(7): 41-46.
WANG Yong, LIAO Gui-sheng, WANG Xi-yuan. Carrier frequency offset and time synchronization estimation based on new autocorrelation over fading channel[J]. 2009, 30(7): 41-46.DOI:
基于一种新的自相关函数实现的衰落信道载波频偏和定时同步估计
摘要
针对多天线系统提出一种可用于频率选择性衰落信道的载波频偏估计算法。该算法使用特定的训练序列
采用数据辅助的方法估计频偏
同时利用新的自相关定义完成定时同步。这种算法对时钟同步误差不敏感
可在多倍采样率下工作
易于实现且具有较高精度。
Abstract
A kind of carrier frequency offset estimation algorithm was brought forwards that could be applied in frequency selective fading channel for the multi-antenna system.The algorithm used the given training sequences
assisted-data method to estimate frequency offset and new self-correlation definition to fulfill time synchronization.It was not sensitive to clock synchronization error
and could work under multiple sampling rates.Moreover
it was easy to be realized and had high precision.