| 基于谱相关技术的广播电视频谱二次利用 |
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| 引用本文： | 屈小康,汪立新,潘慈严. 基于谱相关技术的广播电视频谱二次利用[J]. 中国有线电视, 2009, 0(7): 694-697 |
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| 作者姓名： | 屈小康 汪立新 潘慈严 |
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| 作者单位： | 1. 杭州电子科技大学通信工程学院,浙江,杭州,310018
2. 杭州电子科技大学通信工程学院,浙江,杭州,310018;通信系统信息控制技术国家级重点实验室,浙江,嘉兴,314001 |
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| 摘 要： | 频谱感知是认知无线电（CR）的一项关键技术，为提高广播电视信号的频谱利用率，提出将一种基于AR模型的频谱感知方法运用到分布式融合检测天线系统的局部传感器中，以MPSK调制信号为例运用MATLAB仿真实现了不同SNR条件下对主用户信号在某一时刻存在与否的有效检测。仿真结果表明：将该方法运用到电视信号频谱检测中可以获得良好的效果，为CR智能化分配空闲频谱提供了识别依据，提高了频谱的利用率。
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| 关 键 词： | CR AR模型 频谱感知 分布式融合检测 |
The Secondary Use of Broadcast Television Spectrum Based on Spectral Correlation Technology |
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| QU Xiao-kang,WANG Li-xin,PAN Ci-yan. The Secondary Use of Broadcast Television Spectrum Based on Spectral Correlation Technology[J]. China Cable Television, 2009, 0(7): 694-697 |
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| Authors: | QU Xiao-kang WANG Li-xin PAN Ci-yan |
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| Affiliation: | QU Xiao-kang, WANG Li-xin, PAN Ci-yan( 1. College of Communication Engineering, Hangzhou Electronic University, Zhejiang Hangzhou 310018, China ;2. National Laboratory of Information Control Technology for Communication System, Zhejiang Jiaxing 314001, China) |
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| Abstract: | Spectrum sensing is a key technical in cognitive radio （CR）. In order to improve the spectrum efficiency of the radio and television signals, a method of spectrum sensing based on AR model is proposed to be applied to the partial sensors of the distributed fusion detection antenna system. Taking MPSK modulated signal as an example, the existence of the primary user signal at some moment in different conditions of SNR with the MATLAB software is verified. The simulation results show that： being applied to the spectrum detecting of television signals, this method could get good results. It provides the identification for intelligent allocation of free spectrum in CR and improves the spectrum utilization. |
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| Keywords: | CR |
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