摘要
正交频分复用(OFDM)技术已经被广泛应用于数字音频广播(DAB)、数字视频广播(DVB-T)、数字中短波广播(DRM、IBOC)和无线局域网等系统中,在未来的宽带无线移动通信系统中,OFDM也将是一项必不可少的技术。本文在介绍OFDM系统的传输原理以及遇到的问题的基础上,着重介绍了目前比较具有代表性的几种OFDM的载波同步算法,通过MATLAB对其中的算法进行了仿真,分析了各自的性能。
Orthogonal frequency division multiplexing （OFDM）has been used widely in many fields such as DAB, DVB -T, DRM, IBOC and W- LAN. And in the future wideband wireless mobile communication systems, OFDM will be also a necessary technique. In this paper, first we introduce the transmission principle of the OFDM system and the problems we meet. Then we introduce several representative carrier frequency synchronization algorithms for OFDM signal and give the algorithm simulation by MATLAB and analysis.
出处
《中国传媒大学学报（自然科学版）》
2006年第1期40-44,共5页
Journal of Communication University of China：Science and Technology
