| 基于 Hough 变换的多频分量的 LFM 信号的检测 |
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| 引用本文： | 刘朝晖,李瑞红. 基于 Hough 变换的多频分量的 LFM 信号的检测[J]. 计算机与数字工程, 2014, 0(6): 1054-1056 |
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| 作者姓名： | 刘朝晖 李瑞红 |
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| 作者单位： | 海军航空工程学院青岛校,区青岛266041 |
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| 摘 要： | LFM信号是一种典型的非平稳信号，其Wigner-Ville时频分布表现出明显的线状分布特征。 Hough变换是一种直线积分投影变换，利用Hough变换可以对WV变换的结果进行线积分，从而实现抑制噪声检测信号的目的。计算机仿真试验表明Hough变换可以在一定信噪比情况下实现多分量的LFM 信号检测，对两分量的LFM信号，可以作到0dB高斯白噪声下的准确检测。
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| 关 键 词： | LFM信号 时频分布 Hough变换 信号检测 |
Multi-frequency-component LFM Signal Detection Based on Hough Transform |
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| LIU Zhaohui,LI Ruihong. Multi-frequency-component LFM Signal Detection Based on Hough Transform[J]. Computer and Digital Engineering, 2014, 0(6): 1054-1056 |
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| Authors: | LIU Zhaohui LI Ruihong |
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| Affiliation: | (Naval Aeronautical Engineering Academy Qingdao Campus, Qingdao 266041) |
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| Abstract: | LFM is a typical non-stationary signal ,of which Wigner-Ville time-frequency distribution expresses an obvi-ous line form distribute characteristic .Hough transform is a kind of straight line integral cast shadow transformation ,which can suppress noise detection signal through using make line integral calculus with the result to the WV transformation .Simu-lation results indicate that Hough transform can detect multi-component LFM signal in the certain SNR ,detect exactly with 0dB Gauss white noise for two-component LFM signal . |
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| Keywords: | LFM signal time-frequency distribution Hough transform signal detection |
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