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

作　　者：周茜茜 高春芳 ZHOU Xi-xi;GAO Chun-fang(No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)

机构地区：[1]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《通信对抗》2020年第2期18-21,共4页Communication Countermeasures

摘　　要：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.

关 键 词：QAM 频率估计 DFT 误差分析 

分 类 号：TN911.6[电子电信—通信与信息系统]