多载波系统频偏分析及性能仿真  

Frequency offset analysis and performance simulation of multi-carrier system

作　　者：徐晓霞[1] 

机构地区：[1]西安工业大学北方信息工程学院电子信息系,陕西西安710025

出　　处：《现代电子技术》2012年第9期65-67,共3页Modern Electronics Technique

摘　　要：从理论上研究了以OFDM和FMT为代表的多载波系统载波抗频偏性能,并通过Matlab进行仿真和验证,比较了它们的ICI,ISI,有用信号功率、功率损减因子等抗频偏性能。重点分析了矩形窗滤波器下FMT系统的抗频偏参数。理论分析与仿真证明,滤波多音调制系统有着比正交频分复用系统更好的抗载波频偏能力。The carrier anti-offset performanc of multi-carrier system represented by OFDM and FMT is researched theoretically.The anti-offset performances,such as ICI,ISI,useful signal power and power impoverishment factor was compared through simulation and verification with Matlab.Some anti-offset parameters of FMT were analysised.Both theoretical analysis and simulation show that the filtering multitone modulation system has more the ability of anti-carrier frequency offset than orthogonal frequency division multiplexing system.

关 键 词：OFDM FMT 频率偏移 ISI ICI 

分 类 号：TN929.5[电子电信—通信与信息系统] TP273[电子电信—信息与通信工程]