基于FPGA实现的WCDMA上行Rake接收机  

Design of WCDMA Uplink Rake Receiver Based on FPGA

作　　者：顾明超[1] 李倩[2] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]北方工程设计研究院有限公司,河北石家庄050019

出　　处：《无线电通信技术》2013年第5期72-74,96,共4页Radio Communications Technology

摘　　要：主要研究了WCDMA上行随机接入信道的Rake接收机技术;介绍了WCDMA上行随机接入信道的结构和特点,以及Rake接收的原理和FPGA实现。FPGA具有并行高速计算能力,最适合用于进行并行的多路相关运算以及多用户并行检测和解调,所以考虑到用FPGA实现WCDMA上下行信号的接收。采用Rake接收的方法对上下行信号进行接收是目前最通用的做法,通过工程实现和试验验证了设计的合理性和正确性。The research in this paper focuses on the Rake receiver technology for PRACH channel,which is one of the WCDMA uplink physical channels. The first part describes the structure and characteristics of PRACH channel. The theory and FPGA application of Rake receiver are presented secondly. The FPGA, with its high-speed parallel computing capability, is suitable for parallel multi- channel computing and multi-user detection and demodulation, so the FPGA is considered for reeeiveing of WCDMA uplink and downlink signals. The use of rake receiver for uplink and downlink signal reception of WCDMA communication system is by far the most common practice. At last, the design is validated by the engineering implementation and the experiments.

关 键 词：WCDMA 随机接入信道 RAKE接收机 FPGA 

分 类 号：TN911[电子电信—通信与信息系统]