基于IEEE UWB标准信道模型的RAKE接收机性能分析  

Performance of RAKE receiver using Intel channel model

作　　者：裴颖[1] 庞伟正[1] 郑仁飞[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,哈尔滨150001

出　　处：《信息技术》2006年第6期65-68,共4页Information Technology

摘　　要：超宽带信号经多径信道传播会产生严重的时间弥散。采用RAKE接收是提高超宽带接收机性能的重要手段。介绍了Intel的UWB多径信道模型。对采用TH-PPM调制的超宽带系统在Intel多径信道模型下A-RAKE,S-RAKE和P-RAKE的误码率性能和对系统复杂性的要求进行了分析。在实际的RAKE接收机设计中,S-RAKE和P-RAKE的性能与支路数有关,S-RAKE要优于P-RAKE。S-RAKE和P-RAKE的性能随着支路的增加而减小。In multipath environments, ultra- wide band signals suffer from severe time dispretion. RAKE reception is an important way to boost the performance of ultra - wide band receivers. In this paper, characteristics of the multipath channel response of ultra- wide band（UWB） communication system are introduced. With the assumption that TH- PPM modulation is used, the BER performance and system complexity of RAKE reception in Intel channel model are analyzed. The performance of S - RAKE is better than that of P- RAKE , they both are related to the fingers of RAKE receiver. The difference of performance of S - RAKE and P - RAKE is reduced with the increasing of fingers.

关 键 词：超宽带 Intel信道模型 RAKE接收 

分 类 号：TN914.3[电子电信—通信与信息系统]