单载波系统与OFDM比较及均衡技术研究  

Research of the Signal Carrier System and OFDM as well as Frequency Domain Equalization Technology

作　　者：兰海洋[1] 徐伟掌[1] 余心乐[1] 

机构地区：[1]中国传媒大学广播电视数字化教育部工程研究中心,北京100024

出　　处：《中国传媒大学学报（自然科学版）》2011年第4期51-54,共4页Journal of Communication University of China：Science and Technology

摘　　要：介绍OFDM与基于块传输单载波通信系统的技术对比,以及单载波系统的关键技术频域均衡的两种算法。由于单载波系统传输时加入了UW(Unique Word)符号,使其在接收端的频域均衡技术大大简化。它与多载波OFDM通信系统相比较有相似的抗干扰性能和较小的峰均比特性,是对未来通信系统多载波传输的一个有利补充。This paper mainly introduces the comparison of the capability of Orthogonal Frequency Division Multiplexing（OFDM） and signal carrier system based on block transmission,as well as another two key technologies about frequency domain equalization（FDE）.Due to the use of the Unique Word（UW） in signal carrier transmission system,here the FDE technology at receiver is to certain extent simplified.Although the signal carrier system has similar ability of resistance to interference compared to OFDM,the much lower PAPR makes signal carrier system a good technology in the development of communication system.

关 键 词：单载波 OFDM 频域均衡 

分 类 号：TN911.5[电子电信—通信与信息系统]