| 基于分数阶矩估计的非参量CFAR检测 |
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| 引用本文： | 李军,王雪松,王涛.基于分数阶矩估计的非参量CFAR检测[J].电子与信息学报,2011,33(3). |
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| 作者姓名： | 李军 王雪松 王涛 |
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| 作者单位： | 国防科技大学电子科学与工程学院; |
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| 摘 要： | 该文针对杂波背景中的CFAR(恒虚警率)检测问题,提出了一种新的CFAR检测器——Blind-CFAR检测器。该检测器通过估计杂波的分数阶矩,获得杂波的最大熵概率密度函数估计,进而确定CFAR检测门限。以Weibull杂波为例,仿真验证了Blind-CFAR检测器的有效性。由于采用了非参数估计方法,Blind-CFAR检测器具有结构简单、通用性好等优点,并可应用于未知杂波背景中的目标检测。
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| 关 键 词： | 雷达 恒虚警 非参量检测 分数阶矩 最大熵 |
Nonparametric CFAR Detection Based on Fractional Moment Estimations |
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| Li Jun,Wang Xue-song,Wang Tao.Nonparametric CFAR Detection Based on Fractional Moment Estimations[J].Journal of Electronics & Information Technology,2011,33(3). |
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| Authors: | Li Jun Wang Xue-song Wang Tao |
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| Affiliation: | Li Jun Wang Xue-song Wang Tao(School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | For the problem of CFAR(Constant False Alarm Rate) detection in clutter,a new detector,i.e.,the Blind-CFAR detector is proposed.The Blind-CFAR detector calculates its detection threshold through the PDF(Probability Density Function) estimation of clutter,which is based on the fractional moment estimations of clutter and the maximum entropy method.The Blind-CFAR detector is verified in Weibull clutter through simulation experiments.By employing nonparametric estimation methods,the Blind-CFAR detector has adv... |
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| Keywords: | Radar CFAR Nonparametric detection Fractional moment Maximum entropy |
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