基于加权最小二乘的数字调制信号单通道盲分离  

Blind Separation of Single Channel Digital Signals Using Weighted Least Squares

作　　者：迟松[1] 葛临东[1] 

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《信息工程大学学报》2015年第3期327-331,共5页Journal of Information Engineering University

摘　　要：针对数字调制混合信号的单通道盲分离问题,从最优化角度出发,引入了最小二乘算法,在此基础上,针对直接最小二乘算法性能受成形滤波器串扰影响的问题,提出了加权最小二乘盲分离算法。仿真结果表明,所提算法较已有算法在性能和效率方面都有一定的优势。The LS algorithm is introduced from the respective of optimization for the single-channel blind separation problem of digital modulated mixture signals. Based on the algorithm, targeting at the problem that the LS is affected by the shaping filter crosstalk, the WLS algorithm of blind sepa- ration is proposed. Simulation results show that the WLS algorithm is further improved than the LS algorithm in the separation performance.

关 键 词：单通道 混合信号 盲分离 最小二乘 加权最小二乘 

分 类 号：TN911.7[电子电信—通信与信息系统]