空时编码在单天线UWB通信系统中的应用  

Space-time Coding in a Single Antenna UWB Communication System Application

作　　者：金海鹰[1] 胡磊[1] 

机构地区：[1]中国人民解放军91245部队

出　　处：《无线电通信技术》2013年第2期94-96,共3页Radio Communications Technology

摘　　要：超宽带(UWB)适用于基带多用户通信、战场无线通信和高数据率多媒体业务等通信系统,其数据传输速率高、功耗低、多径分辨能力强。但超宽带脉冲信号时域支撑区极窄,信道为密集多径,将空时编码技术引入超宽带通信系统,能够提升无线通信系统的信道容量与抗误比特率性能。在对UWB空时分组编码系统模型性能理论分析的基础上,对空时分组码在单天线UWB系统应用方案与UWB空时分层码方案进进行了简要介绍,利用Matlab对IEEEUWB信道模型进行仿真,提出了空时编码在UWB通讯技术中应用后提升短距高速率无线通信的性能的结论 。the ultra-wideband （UWB） transmissions,with many advantages such as high transmission rate,low power consumption and high multipath resolution ability,is applicable to such communications systems as baseband multi- user communication,battlefield wireless communication,and high data rate multimedia service. But due to the disadvantages of UWB pulse signals,such as very narrow time domain support area and the dense multipath channels, space - time coding technique is introduced to improve the channel capacity and resistance to bit error rate of wireless communication system. On the basis of theoretical analysis on the performance the UWB space -time block coding system model,the application solution of space -time block code in a single antenna UWB system and UWB layered space -time code scheme are briefly introduced, through simulating the IEEE UWB channel with Matlab,this paper concludes that space - time coding in UWB communication technology can improve the performance of short distance high rate wireless communication.

关 键 词：空时编码 UWB 单天线 通信系统 

分 类 号：TN99[电子电信—信号与信息处理]