摘要
提出了一种基于盲源分离的水声信道讯均衡处理方法,通过对接收信号过采样构成源信号,采用了基于信息最大化原理(Infomax)在线分离算法进行了水声信道的盲均衡,并研究了时变水声信道条件下算法的均衡情况,仿真实验结果表明,该处理方法对多径水声信道具有较好的均衡效果,同时不受最小相位的条件限制。
An underwater acoustic channel blind equalization method via the blind source separation theory is presented. Constructing source signal by oversampling of the received signal, an on-line separation algorithm based on infomax principle is employed to equalize the underwater acoustic channel. Convengence results in both time-invariant and time-variant channel are studied. Simulation experiment shows that without the limit of minimum phase, the proposed algorithm gains promising results in multipath underwater acoustic channel.
出处
《电子与信息学报》
EI
CSCD
北大核心
2003年第2期270-274,共5页
Journal of Electronics & Information Technology
基金
国防科技重点实验室(99JS24.3.1.JW0608)等项目资助
关键词
盲源分离
水声信道
盲均衡
水声通信
Blind source separation, Blind equalization, Multipath