无线移动信道中Rake接收机的多径分辨系数  

Multipath distinguish factor of Rake receiver in mobile radio channels

作　　者：唐友喜[1] 李少谦[1] 李英涛[2] 

机构地区：[1]电子科技大学通信抗干扰技术国防重点实验室,四川成都610054 [2]华为技术有限公司,广东深圳518057

出　　处：《通信学报》2003年第1期117-123,共7页Journal on Communications

基　　金：国家"863"基金资助项目(863-317-03-01-05-20)

摘　　要：本文研究了码分多址移动通信系统中RAKE接收机的特性在无线移动信道中一种新的衡量方式。目前已有的无线移动信道的衡量方式,只侧重于对无线电波传播过程的研究,如大尺寸环境路径损失,小尺寸环境多径衰落等;已有的RAKE接收机特性的衡量方式,即分辨多径个数,只强调RAKE接收机能处理的多径对其性能的影响。这两种衡量方式已不能很好地衡量信道的特性对目前新型RAKE接收机的影响。本文提出了一种新的联合衡量无线信道及RAKE接收机特性的方式—多径分辨系数,它能很好地衡量无线移动信道对新型RAKE接收机的影响以及新型RAKE接收机算法的先进性。In this paper, we study the measurement of the property of Rake receiver in mobile radio CDMA channels. So far, the measurement of property of mobile radio channels was emphasized on the study of radio propagation, such as large-scale path loss, small-scale fading and multipath. In another extreme, the measurement of the property of Rake receiver was the number of distinguished multipath. These measurements are non-compact when new Rake receiver is considered. We proposal a new measurement—multipath distinguish factor (MDF) of Rake receiver. MDF can measure the impact of wireless mobile channels on new type Rake receiver, and the advanced algorithm of Rake receiver.

关 键 词：多径分辨系数 RAKE接收机 无线移动通信信道 衰落 空时发射分集 码分多址 扩频 码间干扰 误码率 

分 类 号：TN929.533[电子电信—通信与信息系统]