| SAR图像中动目标自聚焦检测的方法改进 |
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| 引用本文： | 雷仲魁,陈广东,朱兆达,朱岱寅.SAR图像中动目标自聚焦检测的方法改进[J].南京航空航天大学学报,2008,40(6). |
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| 作者姓名： | 雷仲魁 陈广东 朱兆达 朱岱寅 |
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| 作者单位： | 1. 南京航空航天大学无人机研究院,南京,210016
2. 南京航空航天大学信息科学与技术学院,南京,210016 |
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| 基金项目： | 航空科学基金
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| 摘 要： | 构造了各聚焦图像块的对比图像块,对比图像块内的静止背景与聚焦图像块内的静止背景图像保持同步变化,它们的锐度始终相等,而对比图像块内的动目标与聚焦图像块内的动目标图像有很大差异,以聚焦图像块与对比图像块锐度比检测动目标,可排除静止背景锐度下降的影响,提高检测性能。实测数据表明该算法有效。
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| 关 键 词： | 合成孔径雷达 动目标检测 相位误差估计 |
Improved Method for Detecting Moving Targets on SAR Image by Focusing |
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| Lei Zhongkui,Chen Guangdong,Zhu Zhaoda,Zhudaiyin.Improved Method for Detecting Moving Targets on SAR Image by Focusing[J].Journal of Nanjing University of Aeronautics & Astronautics,2008,40(6). |
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| Authors: | Lei Zhongkui Chen Guangdong Zhu Zhaoda Zhudaiyin |
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| Institution: | Lei Zhongkui1,Chen Guangdong1,Zhu Zhaoda2,Zhudaiyin2 |
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| Abstract: | An improved methodology for GMT1 on a SAR image by focusing is presented.A comparative patch is constructed,in which the background clutter image is the same as in the focused patch,but the moving target image is more defocused.The sharpness ratio of the focused image patch to the performed patch can improve the moving target detection performance.Experimental data prove that the method is effective. |
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| Keywords: | synthetic aperture radar moving target detection phase error estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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