数字电视信号的频谱感知实测方案研究

doi:10.3969/j.issn.0253-2778.2010.01.013

中国科学技术大学学报 ›› 2010, Vol. 40 ›› Issue (1): 73-79.DOI: 10.3969/j.issn.0253-2778.2010.01.013

数字电视信号的频谱感知实测方案研究

蒋永磊

上海无线通信研究中心，上海 200335

收稿日期:2009-05-12 修回日期:2009-09-15 出版日期:2010-01-31 发布日期:2010-01-31
通讯作者: 胡宏林
作者简介:蒋永磊，男，1985年生，硕士生. 研究方向：认知无线电技术. E-mail：yonglei.jiang@shrcwc.org
基金资助:
中国高技术研究发展（863）计划（2009AA011800）资助.

Empirical resolution of spectrum sensing for digital TV signals

JIANG Yonglei

Shanghai Research Center of Wireless Communications, Shanghai 200335, China

Received:2009-05-12 Revised:2009-09-15 Online:2010-01-31 Published:2010-01-31

摘要/Abstract

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.

关键词: 认知无线电, 频谱感知, CTTB, DVB-T

Abstract: 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.

Key words: cognitive radio, spectrum sensing, CTTB, DVB-T

蒋永磊，胡宏林，易辉跃，芮赟. 数字电视信号的频谱感知实测方案研究[J]. 中国科学技术大学学报, 2010, 40(1): 73-79.

JIANG Yonglei, HU Honglin, YI Huiyue, RUI Yun. Empirical resolution of spectrum sensing for digital TV signals[J]. Journal of University of Science and Technology of China, 2010, 40(1): 73-79.

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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

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