基于并行混合遗传算法的直接盲信号检测  

Direct blind signal detection based on parallel hybrid genetic algorithms

作　　者：牛海荣[1] 于舒娟[1] 

机构地区：[1]南京邮电大学电子科学与工程学院,江苏南京210003

出　　处：《信息化纵横》2009年第17期39-41,48,共4页

基　　金：国家自然科学基金资助项目(项目编号:60772060)

摘　　要：借助接收数据阵补投影算子对待测发送序列向量的零化作用,把信号盲检测问题转化为整数约束下的二次规划问题,提出了基于并行混合遗传算法的直接盲信号检测的方法。仿真结果表明,该算法只需较小的数据量就可以快速地盲恢复出发送信号,误码率较低,收敛速度快,性能稳定,优于现有的经典盲均衡算法。This paper takes the complementary projection operator of a received date matrix as annihilator of a transmitted sequence vector to be detected, and then formulates the blind detection problem into a quadratic optimization with integral. A novel direct blind signal based on parallel hybrid genetic algorithms is proposed. Simulations show that the algorithm which only needs smaller amount of date can quickly blind recover the transmitted signal, low error rate, achieve good astringency and satisfactory performance, better than the existing classical algorithm for blind equalization.

关 键 词：盲检测 遗传算法 盲均衡 

分 类 号：TN911[电子电信—通信与信息系统]