| 一种单通道条带SAR动目标检测方法 |
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| 引用本文： | 于海锋,王岩飞.一种单通道条带SAR动目标检测方法[J].系统工程与电子技术,2005,27(10):1701-1704. |
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| 作者姓名： | 于海锋 王岩飞 |
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| 作者单位： | 1. 中国科学院电子学研究所,北京,100080;中国科学院研究生院,北京,100039
2. 中国科学院电子学研究所,北京,100080 |
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| 摘 要： | 针对单通道条带SAR动目标检测的问题,利用条带模式SAR和聚束模式SAR的等效关系,把条带数据转换成聚束数据。再按照时间先后分成两组,利用系统参数得到同一地域存在时间先后的两幅图像,对于固定目标,在每幅图像上的成像情况是相同的,而运动目标的像素位置发生了变化。根据此特性,提出了利用前后两幅图像间的差别来检测动目标的方法,并给出了原理推导和具体的检测过程,仿真结果证明了方法的有效性。
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| 关 键 词： | 合成孔径雷达 子孔径 动目标检测 时域分组 |
| 文章编号： | 1001-506X(2005)10-1701-04 |
| 修稿时间： | 2004年11月9日 |
Method of motion target detection by single channel strip-map synthetic aperture radar |
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| YU Hai-feng,WANG Yan-fei.Method of motion target detection by single channel strip-map synthetic aperture radar[J].System Engineering and Electronics,2005,27(10):1701-1704. |
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| Authors: | YU Hai-feng WANG Yan-fei |
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| Institution: | YU Hai-feng~ |
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| Abstract: | To the problem of motion target detection(MTD), data of strip-map synthetic aperture radar(SAR) is inverted to data of spotlight SAR using their equivalent relation.Then,the data is divided into two groups in time domain.Based on system parameters two images of the same terrain can be gotten using these two groups of data.Moving target brings difference between these two images.A method of detecting moving target by detecting the difference is presented,proving in theory and detecting process is also given.Simulation result testifies its validity. |
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| Keywords: | synthetic aperture radar sub-aperture motion target detector time domain grouping |
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