基于压缩感知的信号检测方法  

Signal Detection Method Based on Compressed Sensing

作　　者：黄继海[1] 张晓红[1] 罗文宇 

机构地区：[1]中州大学信息工程学院,河南郑州450044 [2]国家数字交换系统工程技术中心,河南郑州450002

出　　处：《电视技术》2012年第5期86-89,共4页Video Engineering

基　　金：河南省科技厅项目(102102210247)

摘　　要：提出了一种基于压缩感知思想的信号检测方法。该方法首先将信道估计转化为非完全信号重构,实现了信道估计的动态可调整,降低了信道估计的复杂度;然后利用信道估计的结果对压缩采样后的信号进行压缩Rake合并,使得Rake合并的实现复杂度更低;最后对压缩相关且合并后的数据进行判断。理论分析和仿真结果表明了该方法的有效性和可靠性。A novel detection method is proposed with the sparse signal characters. Firstly, the method transforms conventional channel estimation into non-complete reconstruction, which makes adaptability of channel estimation possible and reduces the complexity of channel estimation with lesser pilot signal and higher frequency spectrum utilization. Secondly, compressed rake combination is used with lower complexity. At last, the result of compressed correlation is used to judgment. Theoretical analysis and simulations are used to illustrate its validity and feasibility.

关 键 词：压缩感知 压缩信道估计 非完全重构 压缩检测 

分 类 号：TN914[电子电信—通信与信息系统]