[1]郭经红,尤肖虎,程时昕.基于能量窗重心的CDMA跟踪环及其FPGA实现[J].东南大学学报(自然科学版),2000,30(1):37-41.[doi:10.3969/j.issn.1001-0505.2000.01.007]
　Guo Jinghong,You Xiaohu,Cheng Shixin.CDMA System Tracking Loop Based on Gravity of Energy Windows and Its FPGA Implementation[J].Journal of Southeast University (Natural Science Edition),2000,30(1):37-41.[doi:10.3969/j.issn.1001-0505.2000.01.007]
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基于能量窗重心的CDMA跟踪环及其FPGA实现()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
30
期数:
2000年第1期
页码:
37-41
栏目:
信息与通信工程
出版日期:
2000-01-20

文章信息/Info

Title:
CDMA System Tracking Loop Based on Gravity of Energy Windows and Its FPGA Implementation
作者:
郭经红;  尤肖虎;  程时昕
东南大学移动通信国家重点实验室,南京 210096
Author(s):
Guo Jinghong;  You Xiaohu;  Cheng Shixin
National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096
关键词:
PN码跟踪;  DS/CDMA;  能量窗;  FPGA
Keywords:
PN tracking;  DS/CDMA;  energy window;  FPGA
分类号:
TN929.533
DOI:
10.3969/j.issn.1001-0505.2000.01.007
摘要:
PN码跟踪是DS-CDMA蜂窝移动通信系统的关键技术.本文提出了一种基于能量窗重心(GEW)的跟踪环.基于能量窗重心的跟踪环有效地利用了CDMA系统固有的多径分集能力,跟踪对象是多径信号.研究结果表明,该跟踪环对有效多径成分进行跟踪具有比单径跟踪更好的性能.最后考虑了其FPGA实现.
Abstract:
PN (Pseudo-Noise) code tracking is the most challenging task in a Direct Sequence Spread Code Division Multiplex Access (DS-CDMA) for cellular mobile communication systems. The gravity of energy windows (GEW) tracking loop with time and frequency uncertainty on the received signal is investigated, and the GEW’s analytical results in a multi-path fading channel are introduced. GEW tracking loop exploits the inherent multi-path diversity of the channel, and has better performance than single-path one when working in multi-path fading environment. Finally, we study the FPGA implementation structure of tracking loop.

参考文献/References:

[1] Simon M K,Scholtz R A,levitt B K.Spread spectrum communications.In:Rockville M D,eds.Computer Science,1985,3:122～210
[2] Viterbi Andrew J,CDMA principles of spread spectrum communication.Addison-Wesley Publishing Company,1995.98～102
[3] Erben H,Nuszkowski H.Performance of RAKE receiver in realistic mobile radio environments.In:Proc of 43th VTC,1987,2(2):224～236

备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(69982002).
第一作者:男, 1967年生, 博士研究生.
更新日期/Last Update: 2000-01-20