电讯技术Issue(2)：129-134,6.DOI:10.3969/j.issn.1001-893x.2015.02.003
采用压缩感知的直扩测控信号处理
DS TT & C Signal Processing Based on Compressive Sensing
程艳合 1杨文革 1张令军2
作者信息
- 1. 解放军装备学院 光电装备系，北京101416
- 2. 北京航天飞行控制中心，北京100094
- 折叠
摘要
Abstract
In view of the high-speed sampling and high data rate pressures which come from broadband of the direct-sequence spread-spectrum tracking,telemetry and command(DS TT&C) system,a DS TT&C signal processing method based on compressive sensing( CS) is provided. Firstly,the delay-Doppler basic dictionary is built by in-depth sparse analysis of DS TT&C signal. Then, a DS TT&C signal processing framework based on CS is proposed,and the improved orthogonal matching pursuit( OMP) algorithm is pro﹣vided referring to the signal. Finally,the feasibility and performance of the proposed method are investigated by simulation experiments. The results show that the method is feasible,and the sampling or data rate can be greatly reduced without degrading the demodulation performance,moreover,it can get some noise deduc﹣tion effect. The technology will provide a more efficient analog digital conversion and synchronous demodu﹣lation method for DS TT&C system.关键词
直扩测控信号/压缩感知/延时-多普勒基字典/伯努利随机矩阵/改进正交匹配追踪算法Key words
DS TT&C signal/compressive sensing/delay-Doppler basic dictionary/Bernoulli random ma﹣trix/improved OMP algorithm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,张令军..采用压缩感知的直扩测控信号处理[J].电讯技术,2015,(2):129-134,6.
