| 基于时频的逆合成孔径雷达的距离—瞬时多普勒成像方法 |
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| 引用本文： | 黄小红,姜卫东,邱兆坤,陈曾平. 基于时频的逆合成孔径雷达的距离—瞬时多普勒成像方法[J]. 国防科技大学学报, 2002, 24(6): 34-36 |
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| 作者姓名： | 黄小红 姜卫东 邱兆坤 陈曾平 |
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| 作者单位： | 国防科技大学ATR实验室,湖南,长沙,410073 |
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| 基金项目： | 国家部委基金资助项目(4130304) |
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| 摘 要： | 为了对机动目标进行ISAR成像,以在时间和频域同时具有高分辨率的时频变化替代傅氏变换作谱分析,得到机动目标距离—瞬时多普勒像。实测数据处理结果表明,与直接用距离—多普勒(R D)算法相比,该方法得到的图像质量有明显提高。
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| 关 键 词： | 逆合成孔径雷达 机动目标 时频分析 Fourier变换 |
| 文章编号： | 1001-2486(2002)06-0034-03 |
| 收稿时间： | 2002-08-01 |
| 修稿时间： | 2002-08-01 |
Range-instantaneous Doppler Imaging in ISAR Based on Time-frequence |
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| HUANG Xiaohong,JIANG Weidong,QIU Zhaokun and CHEN Zengping. Range-instantaneous Doppler Imaging in ISAR Based on Time-frequence[J]. Journal of National University of Defense Technology, 2002, 24(6): 34-36 |
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| Authors: | HUANG Xiaohong JIANG Weidong QIU Zhaokun CHEN Zengping |
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| Affiliation: | ATR Lab, National Univ. of Defense Technology, Changsha 410073,China;ATR Lab, National Univ. of Defense Technology, Changsha 410073,China;ATR Lab, National Univ. of Defense Technology, Changsha 410073,China;ATR Lab, National Univ. of Defense Technology, Changsha 410073,China |
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| Abstract: | In order to get the ISAR images of maneuvering targets, Fourier transformation is replaced by time-frequency transformation with high resolution in both time and frequency domains. Range-instantaneous Doppler images of maneuvering targets are got. The imaging result using real data shows that this method is better than R-D algorithms. |
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| Keywords: | ISAR maneuvering targets time-frequency analysis Fourier transformation |
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