摘要
OFDM(Orthogonal Frequency Division Multiplexing,正交频分复用)是第四代移动通信技术的核心技术。首先简要介绍了OFDM的基本原理,分析了两种OFDM信号生成方法,建立了系统仿真模型,对两种信号实现方法进行了分析比较。并基于所建模型,给出了OFDM信号频谱及解码星座图。仿真结果表明,所建模型很好地完成OFDM的实现与解调。
OFDM is core technology for the fourth generation mobile communication system.The article first introduces the basic principles of OFDM,analyzes two kinds of OFDM signal generation method.And then compare the two methods.Based on the simulation model founded by the article,the spectrum of OFDM signal and decoded constellation is given.The simulation results show that the model has well completed the realiation and demodulation of OFDM technology.
出处
《湖北师范学院学报（自然科学版）》
2012年第3期37-40,共4页
Journal of Hubei Normal University(Natural Science)
