数字电视信号的频谱感知实测方案研究  

Empirical resolution of spectrum sensing for digital TV signals

作　　者：蒋永磊 胡宏林 易辉跃 芮赟 

机构地区：[1]上海无线通信研究中心,上海200335

出　　处：《中国科学技术大学学报》2010年第1期73-79,共7页JUSTC

基　　金：中国高技术研究发展(863)计划(2009AA011800)资助

摘　　要：针对我国未来可能开放的电视频段上各种模拟(PAL)及数字电视标准(DVB-T、CTTB)信号的特征,提出了有效的频谱感知实测方案.通过伪随机序列相关检测算法检测CTTB电视信号,并结合载波导频检测算法和循环前缀相关检测算法,通过搭建的基于Labview的硬件检测平台,成功地对上海地区的电视信号进行检测,给出了相关的频谱占用情况及统计特性.An empirical resolution for spectrum sensing based on features of TV signals of PAL,CTTB and DVB-T standards was proposed in consideration of the TV spectrum that might be open in China in future.The resolution proposed the pseudo noise code（PN） correlation detection algorithm for the CTTB TV signals;and integrated the spectrum sensing algorithms of pilot detection and cycle prefix（CP） correlation detection.Moreover,TV signals of the related spectrum in Shanghai were successfully detected based on the proposed resolution operated on our hardware detecting platform based on Labview,and the occupation and some statistic characteristics were provided.

关 键 词：认知无线电 频谱感知 CTTB DVB-T 

分 类 号：TN911.7[电子电信—通信与信息系统]