• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2008, Vol. 30 ›› Issue (7): 125-127.

• 论文 • 上一篇    下一篇

基于FPGA的WCDMA下行物理信道实时解调器的设计

马永康 魏廷存   

  • 出版日期:2008-07-01 发布日期:2010-05-22

  • Online:2008-07-01 Published:2010-05-22

摘要:

本文介绍了一种用于WCDMA系统中下行物理信道的解调器,采用FPGA器件实现该解调器,并给出了该解调器的总体结构和逻辑设计。该解调器把从基站发送过来的码片级数据 解调成符号级数据,并结合外部微处理器将解调后的结果实时上报给后台PC。该解调器可用于WCDMA系统中下行多用户、多小区信息的实时测量,具有实时性好、配置灵活等  特点。

关键词: WCDMA物理信道 解调 FPGA

Abstract:

This paper presents a demodulator based on the downlink of WCDMA, uses FPGA to implement the demodulator, and gives the whole structure of the demodul  ator and its logic design. The demodulator dernodulates the chip's data from the NodeB, and transmits the results to PCs in a real-time way with an int tegrated MCU. The demodulator can be configured flexibly and can demodulate the information of multiple users and cells, and features the ability of real-time general processing.

Key words: WCDMA, physical channel, demodulation, FPGA