OFDM调制新方案及其脉冲成形滤波器的设计  

New OFDM Scheme and Its Pulse Shaping Filter Design

作　　者：曹祁生[1] 梁德群[1] 

机构地区：[1]大连海事大学信息工程学院

出　　处：《电子学报》2007年第6期1108-1112,共5页Acta Electronica Sinica

基　　金：国家自然科学基金(No60272017)

摘　　要：本文提出一种新的正交频分复用(OFDM)调制方案,结合了两种OFDM系统的特点,既利用了脉冲成形技术的优势,又能采用保护间隔.分析了频率偏移存在时脉冲成形滤波器与载波间干扰的关系,并给出一个设计实例的仿真.数值分析和仿真结果表明,该设计能显著抑制载波间干扰.A OFDM scheme is proposed in this paper, which features the advantages of the two types of OFDM. It is capable of benefiting from both pulse shaping technique and guard interval. We examine the relation between pulse shaping filter and intercarrier interference in presence of frequency offset.Finally we introduce an example design and carry out simulations on it.Both numerical analysis and experimental results indicate that the design notably suppresses the interference between subcamiers.

关 键 词：正交频分复用 脉冲成形 保护间隔 频率偏移 载波间干扰 

分 类 号：TN911.3[电子电信—通信与信息系统]