基于DFT校正的QAM信号载波频率估计算法

A Carrier Estimation Method Based on DFT Correction Applied in QAM Signal

针对QAM信号的栽波频率精确估计,尝试应用了一种基于DFT校正的频率估计算法,并与现有的传统基于DFT的频率估计算法进行了性能仿真对比。分析结果表明,基于DFT校正的频率估计算法适用于QAM信号且优于传统算法。

In order to make an accurate estimation of QAM signal frequency,this paper tries to apply a frequency estimation algorithm based on DFT correction The algorithm is compared with the existing traditional algorithm.The results demonstrate that thefrequency estimation performance of the algorithm is suitable for QAM signal and better that the traditional one.