西安电子科技大学学报（自然科学版）2013，Vol.40Issue(2)：187-193,7.DOI:10.3969/j.issn.1001-2400.2013.02.030
高性能无数据辅助QPSK频偏估计新算法
New high performance non-data-aided frequency estimation and implementation of QPSK
摘要
Abstract
A new scheme for modulation removal for Non-Data-Aided (NDA) QPSK signals is proposed. The algorithm based on this new scheme can make a large range of frequency estimation cooperated with the DFT coarse frequency estimation method. Compared with the estimation algorithm using DFT and interpolation, the new scheme can endure more frequency fluctuation and estimate accurately the frequency offset when the effset varies slowly. Simulations and FPGA implementation prove the new scheme's good performance that it closes to CRB even at a low SNR.关键词
QPSK/无数据辅助/频偏估计/去调制Key words
QPSK/ non-data-aided/ frequency estimation/ modulation removal分类
信息技术与安全科学引用本文复制引用
张毅,欧阳志新,邓云凯,王宇..高性能无数据辅助QPSK频偏估计新算法[J].西安电子科技大学学报（自然科学版）,2013,40(2):187-193,7.
