| 基于HH变换的非平稳运动目标的ISAR成像 |
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| 引用本文： | 范录宏,黄顺吉,侯印鸣. 基于HH变换的非平稳运动目标的ISAR成像[J]. 电波科学学报, 2006, 21(4): 624-627 |
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| 作者姓名： | 范录宏 黄顺吉 侯印鸣 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,610054;电子科技大学电子工程学院,四川,成都,610054;电子科技大学电子工程学院,四川,成都,610054 |
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| 摘 要： | ISAR时频分析法成像与传统的成像处理算法相比,将二维的距离-多普勒矩阵变成了三维的时间-距离-多普勒矩阵,在一定程度上改善了成像质量,但对于非平稳运动目标的成像效果并不非常显著.应用Hilbert-Huang变换,对非平稳运动ISAR目标进行成像处理,并与经典的Wigner-Ville分布算法所得图像进行比较.成像试验结果表明:该算法明显改进了图像质量.
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| 关 键 词： | 逆合成孔径雷达(ISAR) 时频分析 Hilbert-Huang变换 |
| 文章编号： | 1005-0388（2006）04-0624-04 |
| 收稿时间： | 2005-03-21 |
| 修稿时间： | 2005-03-21 |
ISAR imaging of non-stationary moving target based on HH transform |
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| FAN Lu-hong,HUANG Shun-ji,HOU Yin-ming. ISAR imaging of non-stationary moving target based on HH transform[J]. Chinese Journal of Radio Science, 2006, 21(4): 624-627 |
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| Authors: | FAN Lu-hong HUANG Shun-ji HOU Yin-ming |
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| Affiliation: | Dept of Electronic Engineering, UEST of China, Chengdu Sichuan 610054, China |
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| Abstract: | Compared with the traditional imaging algorithm, the ISAR time-frequency analysis, which transforms 2-dimansion range-Doppler matrix to 3-dimension time-range-Doppler matrix, may improve the imaging quality at a certain extent, but is not suitable for the case of non-stationary moving targets. A new ima- ging scheme base on Hilbert-Huang transform is presented and the ISAR image of a non-stationary moving target is processed in this paper. The simulation results show that the scheme can obviously improve the image quality against the traditional Wigner-Ville distribution algorithm. |
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| Keywords: | inverse synthetic aperture radar (ISAR) time-frequency analysis Hilbert-Huang Transform (HHT) |
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