基于MWC压缩采样系统的通道失配校正研究  

Study on channel mismatch correction based on MWC compressive sampling system

作　　者：杨树树[1] 宁勇[1] 

机构地区：[1]中国航天科工集团8511研究所,江苏南京210007

出　　处：《航天电子对抗》2015年第3期37-39,48,共4页Aerospace Electronic Warfare

摘　　要：压缩感知理论突破了传统Nyquist采样定理的限制,成为近年来研究的热点。调制宽带转换器(MWC)是一种典型的多通道压缩采样系统,实际应用中由于通道失配问题,导致重构恢复出的信号中存在严重失真。针对上述问题,在信号重构恢复理论模型的基础上提出了校正模型。仿真结果表明,此校正模型与原有的理论模型相比,在信号重构精度上有大幅提高。Compressed Sensing theory brokes the restraint of traditional Nyquist sampling theorem. It has become a research hotspot recently. Modulated Wideband Converter （MWC） is a typical multi-channel compressive sampling system, but the reconstructed signal has severe distortion because of the problem of channel mismatch in practical application. The correction model is proposed based on signal reconstruction theory model, and the simulation result shows that the signal reconstruction precision is the improved remarkably.

关 键 词：压缩感知 通道失配 信号重构 校正模型 

分 类 号：TN911.7[电子电信—通信与信息系统]