摘要
正交频分复用(OFDM)是一种具有巨大潜力的传输技术。OFDM技术最突出的优点是频谱利用率高、抗干扰、抗信道衰落。本文首先介绍了OFDM技术的基本原理,接着分析了OFDM技术的优势以及需要克服的缺陷,最后讨论了OFDM的几种关键技术。
OFDM(Orthogonal Frequency Division Multiplexing) is a special kind of multi-carrier digital modulation technique. It has prominent advantages in high spectrum utilization, anti-jamming and anti-fading channel. This paper introduces the key techniques of OFDM, and then analyzes the advantages of OFDM and the need to overcome the defects, and finally discusses the application of OFDM in 4G mobile communication system.
作者
刘巧平
董军堂
Liu Qiaoping, Dong Juntang (Institute of Physics and Electronics Communication Engineering, Yanan University, Shanxi, 716OOO, China)
出处
《电子测试》
2014年第3期102-104,共3页
Electronic Test
基金
氧化锌纳米线低温水热法制备及特性研究(陕西教育厅11JK0846),基于超声波技术的高精度原油流量测量系统研发(陕西教育厅12JK0495),OFDM(正交频分复用)技术及应用(校级项目编号:YD2011-11)共同支助