[1]陈相宁,程时昕.衰落信道实现帧同步的新方法及其性能分析[J].东南大学学报(自然科学版),1999,29(5):31-35.[doi:10.3969/j.issn.1001-0505.1999.05.006]
　Chen Xiangning,Cheng Shixin.A New Frame Synchronization Method and Its Performance in Rayleigh Fading Channel[J].Journal of Southeast University (Natural Science Edition),1999,29(5):31-35.[doi:10.3969/j.issn.1001-0505.1999.05.006]
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衰落信道实现帧同步的新方法及其性能分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
29
期数:
1999年第5期
页码:
31-35
栏目:
信息与通信工程
出版日期:
1999-09-20

文章信息/Info

Title:
A New Frame Synchronization Method and Its Performance in Rayleigh Fading Channel
作者:
陈相宁;  程时昕
东南大学移动通信国家重点实验室, 南京 210096
Author(s):
Chen Xiangning;  Cheng Shixin
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096
关键词:
帧同步;  独特码;  多次检测;  多次累积后期检验
Keywords:
frame-synchronization;  signature-code;  major-decision-detection;  accumulation-posterior-detection
分类号:
TN914.3
DOI:
10.3969/j.issn.1001-0505.1999.05.006
摘要:
DSSS扩频技术能提高DSSS扩频系统的信号检测能力和抗干扰性能.本文将DSSS扩频技术引入非DSSS扩频系统, 提出了将独特码序列成组重复发送,并通过解扩频来检测独特码序列的方法, 分析了瑞利衰落信道下,采用新方法进行一次检测、 多次检测和多次累积后期检验的检测性能, 给出了解析表达式并进行了仿真验证.分析表明, 该方法使系统同步性能有了很大改善; 若采用多次累积后期检验的检测方法, 系统的帧同步性能还能进一步提高.
Abstract:
DSSS technique improves the signal detectability of the DSSS system. By introducing such technique into non-DSSS system, this paper proposes a new method that sending the signature code in groups repeatedly, performing frame synchronization by de-spread spectrum detection. The detectability of the frame synchronization codes in such a system is analyzed under Rayleigh fading channel, using once detection, major decision detection and accumulation posterior detection methodes. The analysis shows that great improvement can be obtained and, better performance can be given by accumulation posterior detection method. 

参考文献/References:

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相似文献/References:

[1]吴伯修,陈利群.无需帧同步的语音置乱体制中的密码滚动[J].东南大学学报(自然科学版),1991,21(5):1.[doi:10.3969/j.issn.1001-0505.1991.05.001]
　Cipher Rolling in the Speech Scrambling System Requiring no Frame Synchronization[J].Journal of Southeast University (Natural Science Edition),1991,21(5):1.[doi:10.3969/j.issn.1001-0505.1991.05.001]

备注/Memo

备注/Memo:
第一作者:男, 1967年生, 博士研究生.
更新日期/Last Update: 1999-09-20