| 一种基于图像分割和模板匹配的短波跳频信号盲检测算法 |
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| 引用本文： | 李琰,李天昀,葛临东.一种基于图像分割和模板匹配的短波跳频信号盲检测算法[J].信息工程大学学报,2010,11(6):756-761. |
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| 作者姓名： | 李琰 李天昀 葛临东 |
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| 作者单位： | 信息工程大学信息工程学院,河南郑州450002 |
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| 摘 要： | 提出了一种基于图像分割和模板匹配的短波跳频信号盲检测算法。该算法将实际跳频信号的STFT（Short Time Fourier Transform）时频谱图当做一幅图像,利用图像分割手段分离背景噪声,并通过模板匹配来实现跳频信号的检测。实验结果表明该算法能够有效克服实际短波信道中复杂的背景噪声,计算复杂度低,易于工程实现。
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| 关 键 词： | 跳频 盲检测 STFT 图像分割 模板匹配 |
Blind Detection of High Frequency FH Signals Based on Image Segmentation and Template Matching |
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| LI Yan,LI Tian-yun,GE Lin-dong.Blind Detection of High Frequency FH Signals Based on Image Segmentation and Template Matching[J].Journal of Information Engineering University,2010,11(6):756-761. |
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| Authors: | LI Yan LI Tian-yun GE Lin-dong |
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| Affiliation: | (Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | In this paper,an algorithm is proposed for blind detection of High Frequency FH Signals based on Image Segmentation and Template Matching.The algorithm takes the time-frequency spectrograph of practical signal STFT as an ordinary image,utilizes image segmentation to remove the background noise,and implements the blind detection of FH signal by template matching.Experimental results show that the algorithm can effectively remove the complex background noise coming from the practical High Frequency channel with smaller computational complexity,thus making engineering implementation easier. |
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| Keywords: | frequency-hopping blind detection STFT image segmentation template matching |
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