Rake误码率分析  

Analysis of Rake Bit Error Ratio

作　　者：谭汉洪[1] 赵响[2] 

机构地区：[1]东莞南博职业技术学院,广东东莞523900 [2]桂林电子科技大学应用科技学院,广西桂林541004

出　　处：《现代电子技术》2008年第1期28-32,共5页Modern Electronics Technique

摘　　要：主要针对IEEE802.15.3a工作组提出的UWB标准信道模型,在简述Rake接收机和相关掩模选取的基础上,用图解的方法分析单脉冲的发送、经过信道及接收端采用Rake接收的全过程,主要从仿真方面分析比较典型TH-PPM-UWB系统接收端分别采用ARake,PRake和SRake接收的误码率,并对SRake不同分支数的误码率进行了仿真比较。仿真结果表明采用选择性Rake结构可以有效降低误码率、提高系统性能。仿真结果验证了理论的分析结论。Based on the Intel model approved by the IEEE 802.15. SG3a group and the discussions of Rake receiver and correlation mask, the whole processing of transmitting, crossing UWB channel and Rake receiving of one bit is illustrated, the Bit Error Rate （BER） performance of ARake,PRake,SRake and the different numbers of SRake path for TH - PPM - UWB （time- hopping pulse position modulation ultra wideband） system are simulated and compared. The performance analysis of all kind of Rake receivers in certain channels is useful for applying of Rake receiver. The result indicates that Rake receiver can efficiently improve the performance of UWB system. The simulated results verify the conclusion of theory.

关 键 词：TH—PPM ARake PRake SRake 误码率 

分 类 号：TN911.23[电子电信—通信与信息系统]