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

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.