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一种UWBSAR图像中的非均匀背景CFAR检测方法 被引量:2

A CFAR Detection Method for Nonhomogeneous Environment in UWBSAR Image
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摘要 针对UWBSAR图像中的非均匀背景目标检测问题,提出了一种CFAR检测方法。该方法运用变量索引和秩序统计量CFAR检测,可以在杂波背景的非均匀区域,自动根据检测单元的位置选择合适的估计杂波功率的样本,能使检测器在多目标环境和不规则非均匀背景交界处保持CFAR性能。试验结果表明,该方法在UWBSAR非均匀背景中的目标检测性能,优于传统的单元平均CFAR检测算法。 A CFAR target detection method is proposed for nonhomogeneous environment in UWBSAR image with variability index and order-statistics CFAR detection. The method can select appropriate cells in non-homogenous regions for clutter environment power estimation. The designed detector can keep CFAR performance in multi-targets environment and irregular boundary of non-homogenous regions. Experimental results show that the novel method can offer better detection performance than traditional cell average CFAR detection methods.
出处 《遥感学报》 EI CSCD 北大核心 2006年第3期345-349,共5页 NATIONAL REMOTE SENSING BULLETIN
基金 国家自然科学基金资助项目(60402034) "十五"国防预研资助项目(41307020203)
关键词 UWBSAR CFAR 非均匀背景 变量索引 UWBSAR CFAR nonhomogeneous environment variability index
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共引文献26

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