电讯技术Issue(8)：848-853,6.DOI:10.3969/j.issn.1001-893x.2015.08.004
基于压缩感知的直扩通信多音干扰抑制
Direct Sequence Spread Spectrum Communications Multi-tone Jamming Suppression Based on Compressive Sensing
张永顺 1贾鑫 2尹灿斌2
作者信息
- 1. 解放军装备学院 研究生管理大队，北京101416
- 2. 解放军装备学院 光电装备系，北京101416
- 折叠
摘要
Abstract
The existing direct sequence spread spectrum ( DSSS ) communications multi-tone suppression algorithms are confined to the high sampling rate. To overcome this problem,the sparse dictionary of the DSSS signal and multi-tone jamming are built and an algorithm is designed to suppress the multi-tone jam-ming for the DSSS communications in compressive domain by using the orthogonal matching pursuit( OMP) algorithm. The effectiveness of the algorithm is verified through the theoretical analysis and computer simu-lation. The results show that the method can suppress the multi-tone jamming effectively with the prior in-formation of the jamming sparse degree,the jamming suppression performance don’ t change over the jam-ming quantity and jamming intensity. The demodulation performance of the reconstructed signal in the con-dition of 1/2 compression rate and 20 dB jammer-to-signal ratio( JSR) only 5 dB signal-to-noise ratio ( SNR) loss compared with that of the signal transmitted in additive white Gaussian noise( AWGN) chan-nel. This will provide an effective method for reconstruction of compressed DSSS signal in the multi-tone jamming condition.关键词
直扩通信/压缩感知/多音干扰抑制/稀疏字典/正交匹配追踪算法Key words
DSSS communications/compressive sensing/multi-tone jamming suppression/sparse dictiona-ry/orthogonal matching pursuit algorithm分类
信息技术与安全科学引用本文复制引用
张永顺,贾鑫,尹灿斌..基于压缩感知的直扩通信多音干扰抑制[J].电讯技术,2015,(8):848-853,6.
