【摘要】 正交频分复用(OFDM)是一种多载波数字调制技术。因为它能有效地克服传输中的多径干扰和消除码间串扰,所以在无线宽带领域得到广泛的应用。本文首先介绍了OFDM基本原理及其组成,其次阐述OFDM通信系统的关键技术,最后对OFDM基带传输系统进行了仿真。更多还原

【Abstract】 Orthognal Frequency Division Multiplexing (OFDM) is a multi-carrier digital modulation technique for broad-band wireless communication. Because of good performance in dealing with multi-path disturbance and Inter Symbol Interference (ISI), it has been applied broadly in wireless access. This paper presents an overview of ODFM technique,then introduces key technique for OFDM communication system, finally simulates OFDM baseband transmission.更多还原