一种应用于MRC pre／post-rake的抗抽头串扰算法  

The Interfinger Interference Canceling Algorithm for MRC Pre/post-rake

作　　者：张航[1] 吕明[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《电子科技》2007年第5期33-37,共5页Electronic Science and Technology

摘　　要：新兴的Pre／post-rake技术和传统rake接收机技术相比,在提高了输出信噪比的同时,也引入了更强的抽头串扰,并且该串扰在普遍的情况下将严重制约pre／post-rake的性能。为了有效地消除抽头串扰对接收性能的影响,文中提出了应用于pre／post-rake技术的抗抽头串扰算法,将该算法和MRC pre／post-rake技术相结合,通过理论计算和通过MATLAB仿真。在不影响其它性能的同时,使MRC pre／post-rake获得了更好的抗抽头串扰能力,从而提高了pre／post-rake的接收性能。Compared with conventional rake receivers technology, the new pre - post rake technology achieves better output signal - noise ratio, but at the same time also results in greater interfinger interference, which may significantly affect the pre/post - rake performance. To resolve this problem, a new inteffinger interference canceling method is presented. Theoretical calculation and Matlab simulation show that this method can enable MRC pre/post - rake to cancel interfinger interference better without dropping other performances, thus a great improvement in pre//post - rake performance.

关 键 词：抽头串扰 抗抽头串扰算法 MRC pre/post—rake 相关矩阵 

分 类 号：TN911[电子电信—通信与信息系统]