时变信道下CPM信号自适应盲均衡算法  

Adaptive Blind Equalization Algorithm for Continuous Phase Modulation Signals over Time-Varying Channels

作　　者：钟凯[1] 彭华[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》2016年第1期30-33,47,共5页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(61072046);河南省自然科学基金资助项目(102300410008)

摘　　要：针对时变频率选择性衰落信道下二阶连续相位调制(CPM)信号盲均衡中存在的均衡性能较差问题,提出了一种新的自适应盲均衡算法。该算法使用双向自适应软输入软输出(SISO)方法,同时利用过去、现在和将来的观察数据符号来进行递归最小二乘(RLS)估计,有效改善了信道估计的精度。仿真结果表明所提算法具有良好的盲均衡性能。To solve the problem of the high complexity and poor performance in the blind equalization of 2-ary continuous phase modulation（ CPM） signals,a novel adaptive blind equalization algorithm is proposed. The algorithm improved the equalization performance by applying the bidirectional adaptive SISO method which used the past,the present and the future observational symbols to implement recursive least squares estimation. The simulation results show that the proposed algorithm provides a good blind equalization performance.

关 键 词：连续相位调制 时变信道 双向自适应 盲均衡 递归最小二乘 

分 类 号：TN927[电子电信—通信与信息系统]