| 基于子孔径分解的SAR动目标检测方法 |
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| 引用本文： | 张露,郭华东,韩春明,周平.基于子孔径分解的SAR动目标检测方法[J].电子学报,2008,36(6):1210-1213. |
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| 作者姓名： | 张露 郭华东 韩春明 周平 |
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| 作者单位： | 1. 中国科学院遥感应用研究所遥感信息科学重点实验室,北京,100101
2. 北京环境特性研究所目标与环境电磁散射辐射国家科技重点实验室,北京,100854 |
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| 摘 要： | 运动目标在合成孔径雷达SAR(Synthetic Aperture Radar)图像中的成像会出现模糊,散焦等现象,并且会在方位向出现明显的偏移,这些会导致运动目标的目标杂波比TCR(Target-to-clutter Ratio)降低.本文在子孔径分解技术的基础上提出一种从单通道SAR单视复图像SLC(Single Look Complex)中检测动目标的方法,该方法通过子孔径图像之间的相减操作来抑制杂波,从而提高TCR.通过对机载CV-580数据和星载Envisat ASAR 数据进行测试,证明了该方法的有效性.
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| 关 键 词： | 动目标检测 子孔径分解 SAR |
| 收稿时间： | 2007-01-16 |
Moving Targets Detection in SAR Images Based on Sub-Aperture Decomposition |
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| ZHANG Lu,GUO Hua-dong,HAN Chun-ming,ZHOU Ping.Moving Targets Detection in SAR Images Based on Sub-Aperture Decomposition[J].Acta Electronica Sinica,2008,36(6):1210-1213. |
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| Authors: | ZHANG Lu GUO Hua-dong HAN Chun-ming ZHOU Ping |
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| Affiliation: | ZHANG Lu1,GUO Hua-dong1,HAN Chun-ming1,ZHOU Ping2 (1.State Key Laboratory of Remote Sensing,Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China,2.National Key Laboratory of Target , Environment Electromagnetic Scattering , Radiation,Beijing Institute of Environmental Characteristics,Beijing 100854,China) |
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| Abstract: | Moving targets appear seriously degraded with smearing,defocusing and apparent shifts in the azimuth direction in Synthetic aperture radar(SAR)images and give rise to a considerable loss of the target-to-clutter ratio (TCR).This paper proposes a method to detect moving targets in single-channel SAR single look complex(SLC)image based on sub-aperture decomposition technique.The method can suppress the clutter by image subtraction between two sub-aperture images,therefore enhance the TCR.The effectiveness of ... |
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| Keywords: | SAR |
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