| 基于Gamma分布的优化SAR目标检测 |
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| 引用本文： | 万朋,王建国,黄顺吉.基于Gamma分布的优化SAR目标检测[J].系统工程与电子技术,2000,22(12):21-23. |
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| 作者姓名： | 万朋 王建国 黄顺吉 |
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| 作者单位： | 电子科技大学电子工程系，成都 610054 |
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| 摘 要： | 在Gamma分布条件下，研究了SAR目标检测，得到了阈值系数与恒虚警关系，提出了阈值选择理论及其简单实现方法，优化了杂波均值估计并给出了其无偏鲁棒算法，这样在目标检测中不经过噪声抑制过程但具有抗噪能力，并且参数估计没有偏差。实际SAR数据测试结果表明该方法的检测效果优于双参数恒虚警算法。
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| 关 键 词： | 合成孔径雷达 目标探测 恒虚警检测器 算法 |
| 文章编号： | 1001-506X(2000)12-0021-03 |
| 修稿时间： | 1999年9月26日 |
Optimal Detection for SAR Target Based Gamma Distribution |
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| WAN Peng,Wang Jianguo,Huang Shunji.Optimal Detection for SAR Target Based Gamma Distribution[J].System Engineering and Electronics,2000,22(12):21-23. |
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| Authors: | WAN Peng Wang Jianguo Huang Shunji |
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| Abstract: | In this paper, the relationship between threshold coefficient and constant false alarm probability (CFAR) is obtained after SAR target detection is analyzed according to Gamma distribution. The theory and simple realizing approach of selecting threshold coefficient are proposed. The robust way of optimizing clutter's mean is given, which has de-noising ability without processing of de-noising in target detection. The estimating method hasn't error. Experiment results show the approach in the paper is better than the two-parameter CFAR algorithm. |
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| Keywords: | Synthetic aperture radar Target detection Constant false alarm detector Algorithm |
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