CAJ | 학술논문

正交频分复用（Orthogonal Frequency Division Multiplexing,OFDM）是一种多载波调制技术,由于具有良好的抗多径干扰性能,适用于高速数据传输,OFDM成为近年来人们研究的热点。但是其峰均比较高,应用受到了限制,因此有必要研究降低PAPR的方法。本文首先介绍了OFDM的基本原理和PAPR的基本概念,然后讨论了目前常用的降低PAPR的方法,最后对SLM和PTS方法进行了MATLAB仿真。
정교빈분복용（Orthogonal Frequency Division Multiplexing,OFDM）시일충다재파조제기술,유우구유량호적항다경간우성능,괄용우고속수거전수,OFDM성위근년래인문연구적열점。단시기봉균비교고,응용수도료한제,인차유필요연구강저PAPR적방법。본문수선개소료OFDM적기본원리화PAPR적기본개념,연후토론료목전상용적강저PAPR적방법,최후대SLM화PTS방법진행료MATLAB방진。
Orthogonal Frequency Division Multiplexing（OFDM） is an attractive transmission technique for high-bit-rate communication systems.Because OFDM can transport information in high speed through multi-channel,it has become the hotspot these years,but it has the major disadvantage of high ratio of Peak to Average Power.So that its application is affected and the research methods are needed to reduce PAPR.First,the definition of OFDM and PAPR is given.Afterwards,the important methods to reduce PAPR are studied.Lastly,SLM and PTS are proved workable using MATLAB simulation.