电讯技术Issue(3)：256-261,6.DOI:10.3969/j.issn.1001-893x.2015.03.005
一种针对压缩域信号的新型锁相环技术
A New Phase Locked Loop Technique for Compressed Domain Signal
程艳合 1杨文革1
作者信息
- 1. 解放军装备学院 光电装备系，北京101416
- 折叠
摘要
Abstract
To deal with the issue of compressed communication signal frequency and phase extraction, a new phase locked loop( PLL) technique based on compressive sensing is proposed. Firstly,the compressed domain PLL model is established on the basis of signal estimation analysis in compressed domain,which can directly track the frequency and phase information without reconstructing the original signal. Then,the estimation performance is explored by analyzing the model. Finally,the feasibility and performance of the proposed technique are investigated by simulation experiments. The results show that the technique is fea-sible,and the loop can accurately extract the high dynamic signal frequency. The proposed PLL has a great potential for the application. For instance,it can be used for synchronous demodulation in the communica-tion receiver based on compressive sensing.关键词
压缩域信号/压缩感知/锁相环/平均测频误差Key words
compressed domain signal/compressive sensing/phase locked loop( PLL)/frequency measure-ment error mean分类
信息技术与安全科学引用本文复制引用
程艳合,杨文革..一种针对压缩域信号的新型锁相环技术[J].电讯技术,2015,(3):256-261,6.
