瑞利衰落信道下差分跳频同步多用户性能  

Synchronous Multi-User Performance of Differential Frequency Hopping Over Rayleigh Fading Channels

作　　者：陈智[1] 李少谦[1] 董彬虹[1] 程郁凡[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都610054

出　　处：《电子科技大学学报》2008年第2期206-209,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(60502010)

摘　　要：在瑞利衰落信道和同步多用户环境下,分别针对逐符号检测和按序列检测两种信号检测方法,从理论上分析了差分跳频通信系统的误符号性能,同时做出相应的计算机仿真。仿真结果证实了差分跳频通信技术和按序列检测方法的结合,使系统的多用户性能得到了一定程度的提升。Symbol-by-symbol detection and sequence detection are adopted in differential frequency-hopping （DFH） system. With these two detection methods, the synchronous multi-user performances of DFH system are analyzed over Rayleigh-fading channels. Simulations validate the analyses. The results of analyses and simulations prove that the DFH system with sequence detection can achieve better synchronous multi-user performance than that of conventional frequency-hopping （FH） systems.

关 键 词：差分跳频 多用户性能 瑞利衰落 按序列检测 逐符号检测 

分 类 号：TN97[电子电信—信号与信息处理]