OFDM UWB抗多径干扰同步技术研究  

Synchronization Algorithm Research of OFDM UWB in Multipath Interference Environment

作　　者：孙童 任世杰[1] SUN Tong;REN Shi-jie(College of Physics Science and Information Engineering,Liaocheng University,Liaocheng 252000,China)

机构地区：[1]聊城大学物理科学与信息工程学院

出　　处：《电脑知识与技术》2019年第7期257-260,共4页Computer Knowledge and Technology

基　　金：聊城大学大学生创新创业训练计划资助项目(CXCY2018029/201810447019)

摘　　要：研究了多径环境正交频分复用超宽带(OFDM UWB)载波同步算法,比较了时域基于前导的载波频偏(CFO)估计算法、频域基于训练符号的Moose算法和频域基于导频的Classen算法,证明Classen算法具有更好的载波频偏估计性能和抗多径干扰能力。快速的载波频偏估计和抗多径干扰能力使OFDM UWB系统性能得到很大提高。Orthogonal Frequency Division Multiplexing Ultra-Wideband(OFDM UWB)carrier synchronization algorithm is studied in multipath interference environment.For carrier frequency offset estimation,we compare the CP-based carrier frequency offset(CFO)algorithm in time domain,Moose algorithm based on training symbols and Classen algorithm based on pilot frequency in fre?quency domain.We prove that Classen algorithm has better carrier frequency offset estimation performance and anti-multipath in?terference ability.Through these research,fast carrier frequency offset estimation and anti-multipath interference ability improve the performance of OFDM UWB system.

关 键 词：OFDM UWB 多径干扰 载波同步 频偏估计 交织 

分 类 号：TN[电子电信]