| 认知无线电中基于循环平稳的频谱空洞检测 |
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| 引用本文： | 刘向南.认知无线电中基于循环平稳的频谱空洞检测[J].苏州科技学院学报(自然科学版),2009,26(3):49-53. |
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| 作者姓名： | 刘向南 |
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| 作者单位： | 南京邮电大学,通信与信息工程学院,江苏,南京,210003 |
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| 摘 要： | 利用通信系统中调制信号的循环平稳特性，对频谱空洞进行检测，提升频谱感知技术在低信噪比下的性能。实验结果表明：与传统能量检测方法相比，采用循环特征检测方法改善了认知无线电中频谱空洞的检测能力。
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| 关 键 词： | 认知无线电 频谱空洞检测 能量检测 循环平稳 |
A Spectrum Hole Detection Method Based on Cyclostationarity in Cognitive Radio |
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| LIU Xiang-nan.A Spectrum Hole Detection Method Based on Cyclostationarity in Cognitive Radio[J].Journal of University of Science and Technology of Suzhou,2009,26(3):49-53. |
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| Authors: | LIU Xiang-nan |
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| Institution: | LIU Xiang-nan (School of Telecommunication and Information Engineering,Nanjing University of Posts and Telecommunica- tions, Nanjing 210003, China) |
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| Abstract: | Based on the cyclostationarity of modulation signals, spectrum hole is detected, aiming at the improvement of the performance of spectrum sensing in low SNR situation. The results show that comparing with the traditional energy detection technique, cyclostationarity-based spectrum sensing technique has greatly improved the detective ability in cognitive radio. |
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| Keywords: | cognitive radio spectrum hole detection energy detection cycle stationarity |
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