一种基于盲信号提取的同频干扰抵消算法  

Co-Channel Interference Cancellation Algorithm Based on Maximum Entropy Method

作　　者：万坚[1] 朱中梁[2] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002 [2]信号盲处理国防科技重点实验室,四川成都610041

出　　处：《信息工程大学学报》2007年第4期455-458,共4页Journal of Information Engineering University

摘　　要：为了抵消数字通信中的同频干扰,提出了一种基于单信道盲信号提取算法。不同于现有的盲信号提取盲分离模型,本文的模型除了利用数字信号过采样特性,还充分考虑了载波频率以及信道噪声的影响。并结合调制信号的恒模特性,提出了基于广义峭度的恒模盲信号提取算法。最后通过实验结果证实算法的有效性和稳定性。To cancel co-channel interference in the digital communication, a single channel blind signal extraction algorithm is presented in this paper. Different from the existing blind signal extraction （BSE） models, the digital signals oversampling character is used in the model of this paper. At the same time, carrier frequency and the channel noise are taken into account. Jointed the constant module （CM） character of digital modulated signal, the CM generalized kurtosis algorithm is deduced. The results of experiments testify the validity and the stability.

关 键 词：同频干扰 盲信号提取 广义峭度 恒模算法 

分 类 号：TN911.7[电子电信—通信与信息系统]