| 基于TFD-Hough变换的毫米波导引头微运动参数提取算法 |
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| 引用本文： | 刘进,李金梁,马梁,王雪松,王国玉.基于TFD-Hough变换的毫米波导引头微运动参数提取算法[J].系统工程与电子技术,2010,32(3):518-522. |
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| 作者姓名： | 刘进 李金梁 马梁 王雪松 王国玉 |
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| 作者单位： | （国防科学技术大学电子科学与工程学院， 湖南 长沙 410073） |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金面上项目 (60672033)资助课题 |
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| 摘 要： | 分析了旋转目标的微多普勒特性与微运动参数的关系，指出其微多普勒信号为三参数的正弦调频信号。针对这一信号形式，推导了多分量正弦调频信号的时频分布特性，提出了一种在时频图上检测三参数正弦曲线的Hough变换方法，进而提出了一种基于TFD-Hough(time frequency distribution-Hough)变换的微运动参数提取算法。仿真实验和外场试验数据处理表明了该方法的有效性和鲁棒性。
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| 关 键 词： | 毫米波 导引头 微运动 TFD-Hough变换 正弦调频 |
Micro-motion feature extraction algorithm of millimeter seeker based on TFD-Hough transform |
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| LIU Jin,LI Jin-liang,MA Liang,WANG Xue-song,WANG Guo-yu.Micro-motion feature extraction algorithm of millimeter seeker based on TFD-Hough transform[J].System Engineering and Electronics,2010,32(3):518-522. |
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| Authors: | LIU Jin LI Jin-liang MA Liang WANG Xue-song WANG Guo-yu |
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| Affiliation: | (School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China) |
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| Abstract: | It is pointed out that the micro-Doppler signature of the rotating target is three parameters sinusoidal frequency modulation(FM) signal by analyzing the relationship of micro-Doppler and micro-motion parameters.According to this signal form,the time-frequency character of multi-component sinusoidal FM is deduced,and a Hough transform method to detect three parameter sinusoidal curve in time-frequency plane is proposed,then a micro-motion feature exaction method based on TFD-Hough transform is provided.The ... |
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| Keywords: | millimeter seeker micro-motion TFD-Hough transform sinusoidal frequency modulation |
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