| 基于局部双参数估计的SAR图像CFAR目标检测技术 |
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| 引用本文： | 王义敏,安锦文,王若朴.基于局部双参数估计的SAR图像CFAR目标检测技术[J].火力与指挥控制,2006,31(4):50-52. |
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| 作者姓名： | 王义敏 安锦文 王若朴 |
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| 作者单位： | 西北工业大学自动化学院,陕西,西安,710072 |
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| 摘 要： | 提出了在背景杂波呈现Weibull分布条件下的SAR图像恒虚警目标检测方法.从统计分析观点,推导了基于局部窗口的Weibull分布参数估计和自适应CFAR目标检测阈值的计算公式;对检测后的图像进行形态滤波处理以消除检测中的虚假目标;最后提出了应适当选择恒虚警率.仿真结果表明该方法的有效性.
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| 关 键 词： | SAR CFAR 目标检测 形态滤波 |
| 文章编号： | 1002-0640(2006)04-0050-03 |
| 修稿时间： | 2004年6月11日 |
CFAR Techniques for Target Detection in SAR Images based on Local Bis-Parameter Estimation |
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| WANG Yi-min,AN Jin-wen,WANG Ruo-pu.CFAR Techniques for Target Detection in SAR Images based on Local Bis-Parameter Estimation[J].Fire Control & Command Control,2006,31(4):50-52. |
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| Authors: | WANG Yi-min AN Jin-wen WANG Ruo-pu |
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| Abstract: | In this paper,CFAR technique for target detection in SAR images has been presented on condition that the background clutter to be a Weibull distribution.From the point of statistic analysis,the formulae of the parameter estimations of Weibull distribution and adaptive CFAR threshold,based on the local sliding windows,have been obtained.To eliminate the false targets,mathematical morphologic filter has been used in detected SAR images.Last CFAR should be selected properly.Simulation results preerably show that this method is effective. |
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| Keywords: | SAR CFAR technique targe detection morphologic filter |
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