基于压缩感知的宽带信号接收技术  

Wideband Signal Receiving Technique Based on Compressed Sensing

作　　者：李明[1,2] 何国华 廖宇鹏 

机构地区：[1]国营第七二二厂,桂林541001 [2]北京理工大学博士后流动站,北京100081

出　　处：《电子对抗》2014年第3期22-26,共5页Electronic Warfare

摘　　要：提出了一种基于压缩感知的数字化接收技术。将压缩感知的观测矩阵采用将检测信号与噪声源进行混频后利用低速AD采样的方式来实现，信号的稀疏分解采用从Gabor原子库中进行搜索获得，并且利用凸优化方式来实现对信号稀疏系数的求解。最后对重构后的信号进行测量来获得主要参数。基于计算机仿真的结果验证了该压缩感知数字化接收机的正确性。In this paper, a digital receiving technique based on compressed sensing is pro- posed. The observation matrix can be obtained by mixing the detection signal and the noise sources, then using low AD sampling. The sparse decomposition of the signal matrix is compu- ted from the Gabor atoms searching. The convex optimization is used to solve the sparse coeffi- cient problem. Finally, the main parameters are obtained from the reconstructed signal. Simulated results show validity of the receiving technique.

关 键 词：压缩感知 数字化接收机 稀疏分解 凸优化 

分 类 号：TN911.7[电子电信—通信与信息系统]