| 一种改进的DPCA运动目标检测方法 |
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| 引用本文： | 郑明洁,杨汝良.一种改进的DPCA运动目标检测方法[J].电子学报,2004,32(9):1429-1432. |
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| 作者姓名： | 郑明洁 杨汝良 |
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| 作者单位： | 中国科学院电子学研究所,北京 100080 |
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| 摘 要： | 本文分析了多孔径SAR动目标检测和成像的特点,改进了传统的移位相位中心天线(DPCA)运动目标检测方法.采用两孔径检测时,通过图像的插值和配准,在图像域实现动目标检测,消除了传统DPCA方法必须满足的限制条件;增加孔径数目,不仅能够检测动目标,还能够估计出动目标参数,对动目标聚焦成像,并且消除盲速.文章最后通过计算机仿真数据验证了本文算法的正确性和有效性.
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| 关 键 词： | 移位相位中心天线(DPCA) 多孔径 动目标检测和成像 图像插值和配准 |
| 文章编号： | 0372-2112(2004)09-1429-04 |
| 收稿时间： | 2003-03-02 |
An Improved DPCA Moving Targets Detecting Algorithm |
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| ZHENG Ming-jie,YANG Ru-liang.An Improved DPCA Moving Targets Detecting Algorithm[J].Acta Electronica Sinica,2004,32(9):1429-1432. |
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| Authors: | ZHENG Ming-jie YANG Ru-liang |
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| Affiliation: | Institute of Electronics,Chinese Academy of Sciences,Beijing 100080,China |
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| Abstract: | After analyzing the characteristics of multi-aperture moving targets detecting and imaging,the paper improves the classical displaced phase center antenna (DPCA) measurements.The improved algorithm detects moving targets through pictures interpolation and pictures registering when using two apertures.Moving targets parameters can be estimated and at the same time moving targets images can be obtained if aperture number is increased.The blind speeds can also be removed.In the last,some typical computer simulation results are presented which illustrate the methods' validities. |
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| Keywords: | displaced phase center antenna (DPCA) multi-aperture moving targets detecting and imaging pictures interpolation and registering |
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