OFDM系统中高峰均比的抑制技术分析  

Analysis of Suppression Technology for PAPR in OFDM System

作　　者：柯苗[1] 

机构地区：[1]福建水利电力职业技术学院

出　　处：《电子技术（上海）》2011年第7期65-68,共4页Electronic Technology

摘　　要：正交频分复用(OFDM)技术作为一种高速信息传输技术,具有频谱利用率高、抗频率选择性衰落和码间干扰能力强等优势,但由于OFDM信号是通过多载波调制后的合成信号,所以OFDM信号存在较高的峰均比,这会给传输系统带来许多不利因素,限制了OFDM技术的应用。文章针对OFDM系统中存在的高峰均比提出了一些相关的抑制技术,提高了系统的可靠性和有效性。在实际应用中,可根据要求和需要选择适合的方法。OFDM is a high-speed information transmission technology,it has such advantages as optimum spectrum efficiency,anti frequency selective fading and strong anti inter-symbol interference.However,OFDM signal is a compound one through Multicarrier Modulation,so it has high PAPR,and may lead to many negative factors and restrict the application of OFDM technology.This text puts forward some associated suppression technology against the issue of high PAPR in OFDM system,thereby improving the reliability and validity.During the real application,appropriate solution can be chosen according to the request and need.

关 键 词：正交频分复用 峰均比 编码技术 

分 类 号：TN929.5[电子电信—通信与信息系统]