文档介绍：SHANDONGUNIVERSITY OF TECHNOLOGY毕业设计说明书研究学院:专业:学生姓名:学号:指导教师:201年月摘要随着移动通信系统的发展,人们对高速率业务的要求越来越高,OFDM技术得到广泛的应用。LTE,UMB,Wimax系统以及未来的4G均采用了OFDM技术作为其关键技术。关键词:OFDMA,时间同步,频率同步,同步估计,municationsystems,thedemandingforhigh-speedserviceishigherandhigher,,UWB,:OFDMA,timesynchronization,estimationsynchronization,...........................................................................................................IABSTRACT(英文摘要)............................................................................II目录.........................................................................................................IV第⼀章绪论....................................................................................................................................................................................................................................................................................3第二章OFDMA系统概述......................................................................................................................................................................................................................................................................................................................................................9第三章OFDMA上行链路同步误差的影响......................................................................................................................................................................................................................................................................................................................................................................................................17第四章OFDMA上行链路同步估计算法..............................