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| 基于GNU Radio和USRP2的未知信号检测 | |
| 引用本文： | 陈通海,李景春,郑娜,郝静.基于GNU Radio和USRP2的未知信号检测[J].无线电工程,2012,42(12):16-19. |
| 作者姓名： | 陈通海 李景春 郑娜 郝静 |
| 作者单位： | 1. 河北工业大学信息工程学院,天津300401 国家无线电监测中心,北京100037 2. 国家无线电监测中心,北京,100037 3. 石家庄信息工程职业学院,河北石家庄,050035 |
| 摘 要： | 运用开源软件无线电(GNU's Not Unix Radio,GNU Radio)技术和与之配套的通用软件无线电外设(TheSecond-generation Universal Software Radio Peripheral,USRP2),设计出了未知无线电信号自动检测系统。系统采用能量检测法,能够快速识别一定频段内未知无线电信号,并记录其带宽、中心频率和起止时间,同时存储相应的同相正交(Inphaseand Quadrature,IQ)数据,为后续载频的精确估计提供必要的参数。在实际测试中发现,该系统检测速度快、准确率高,对未知强信号检测具有一定的可靠性和实用性。 |
| 关 键 词： | GNU Radio USRP2 能量检测法 未知无线电信号 |
The Detection of Unknown Signals Based on GNU Radio and USRP2 |
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| CHEN Tong-hai,LI Jing-chun,ZHENG Na,HAO Jing.The Detection of Unknown Signals Based on GNU Radio and USRP2[J].Radio Engineering of China,2012,42(12):16-19. | |
| Authors: | CHEN Tong-hai LI Jing-chun ZHENG Na HAO Jing |
| Affiliation: | 1. School oflnformation Engineering, Hebei University of Technology, Tianjin 300401, China; 2. The State Radio Monitoring Center, Beijing 100037, China; 3. Shijiazhuang Information Engineering Vocational College, Shijiazhuang Hebei 050035, China) |
| Abstract: | A system for detecting unknown radio signals automatically by using GNU Radio and USRP2 （the second-generation Universal Software Radio Peripheral）is designed. With energy detection method,some functions of the system can be achieved such as distinguishing unknown radio signals quickly in a certain frequency band, recording their bandwidth, center frequency, beginning and ending time, while storing relevant IQ data. The previous work provides necessary parameters for estimating carrier frequency accurately. In the actual test, the system is of fast detection, high accuracy, and is reliable and practical to detect strong radio signals. |
| Keywords: | GNU Radio USRP2 energy detection method unknown radio signal |
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