TDS-OFDM系统中PN序列的研究  

Research on PN-sequence in TDS-OFDM Systems

作　　者：吴柳眉[1] 李善劲[1] 姚灏[1] 张寅媛[1] 

机构地区：[1]华南理工大学电子与信息学院,广东广州510640

出　　处：《通信技术》2007年第12期66-67,71,共3页Communications Technology

摘　　要：文中介绍了数字电视地面广播传输系统中的TDS-OFDM技术,阐述了PN序列在TDS-OFDM系统中可以作为OFDM块的保护间隔,还可以被用作系统同步和信道估计等。仿真结果表明,TDS-OFDM系统在多径条件下具有满意的性能。This paper describes TDS-OFDM technology in Digital Television Terrestrial Broadcasting system, and illustrates the application of PN-sequence in TDS-OFDM systems, such as guard interval of OFDM block, system Synchronization and channel estimation. The results of simulation show that TDS-OFDM systems provide satisfactory performance under multipath channel conditions.

关 键 词：时域同步-正交频分复用系统 PN序列 同步 信道估计 

分 类 号：TN911[电子电信—通信与信息系统]