| 低频UWBSAR图像中的目标检测 |
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| 引用本文： | 蒋咏梅,匡纲要,梁甸农.低频UWBSAR图像中的目标检测[J].系统工程与电子技术,1997(10). |
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| 作者姓名： | 蒋咏梅 匡纲要 梁甸农 |
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| 作者单位： | 国防科技大学电子技术系 |
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| 摘 要： | 低频ＵＷＢＳＡＲ不同于窄带高频ＳＡＲ信号。本文针对ＶＨＦ／ＵＨＦＵＷＢＳＡＲ目标与杂波特点，建立了信号模型；在综合现有的几种检测方法基础上，提出了一种新的检测方案，即结合的变化检测和双参数ＣＦＡＲ检测。实验仿真结果表明：这种方案检测过程简单，杂波抑制性能好。
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| 关 键 词： | 雷达信号，目标鉴别，合成孔径雷达 |
Target Detection in Low Frequency UWB SAR Imagery |
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| Jiang Yongmei,Kuang Gangyao and Liang Diannong.Target Detection in Low Frequency UWB SAR Imagery[J].System Engineering and Electronics,1997(10). |
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| Authors: | Jiang Yongmei Kuang Gangyao and Liang Diannong |
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| Institution: | Jiang Yongmei,Kuang Gangyao and Liang Diannong Department of Electronic Technology,National University of Defense Technology,Changsha 410073 |
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| Abstract: | Low frequency UWB SAR signal is different from narrow band high frequency SAR in which it has its own special properties.In this paper, a signal model is derived based on these properties of target and clutter. Several target detectors are available in the literature. A new combined detector is provided which carries on the change detection and the two parameter CFAR detection in two steps.Our simulation results have shown that the combined detector is simple with significant clutter suppression. |
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| Keywords: | VHF/UHF UWB SAR Change detection Two parameter CFAR detection |
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