| 基于RWT的旋转微动目标二维ISAR成像算法 |
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| 引用本文： | 吴亮,黎湘,魏玺章,张旭峰,凌永顺. 基于RWT的旋转微动目标二维ISAR成像算法[J]. 电子学报, 2011, 39(6): 1302-1308 |
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| 作者姓名： | 吴亮 黎湘 魏玺章 张旭峰 凌永顺 |
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| 作者单位： | 国防科技大学电子科学与工程学院;解放军电子工程学院; |
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| 基金项目： | 国家杰出青年科学基金(No.60025102,No.61025006); 武器装备预研基金(No.112010404) |
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| 摘 要： | 本文针对旋转微动目标的二维ISAR成像问题,首先,分析了目标旋转微动及刚体部件在距离-慢时间域的回波特性;其次,提出了基于解正弦调频RWT的旋转微动部件成像算法,同时,提取旋转微动散射点的位置参数并滤除其回波,对剩余回波采用基于RWT方法进行刚体回波重建,并利用传统RD算法获得刚体ISAR像;最后,仿真结果证明了本文算...
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| 关 键 词： | 逆合成孔径雷达 微动目标成像 Racdon-Wigner变换 |
| 收稿时间： | 2010-05-06 |
2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT |
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| WU Liang,LI Xiang,WEI Xi-zhang,ZHANG Xu-feng,LING Yong-shun. 2D ISAR Imaging Algorithm for Rotating Micro-Motion Target Based on RWT[J]. Acta Electronica Sinica, 2011, 39(6): 1302-1308 |
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| Authors: | WU Liang LI Xiang WEI Xi-zhang ZHANG Xu-feng LING Yong-shun |
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| Affiliation: | WU Liang1,LI Xiang1,WEI Xi-zhang1,ZHANG Xu-feng1,LING Yong-shun2(1.School of Electronic Science and Engineeringy,National Universit of Defense Technology,Changsha,Hunnan 410073,China,2.PLA College of Electronics Engineering,Hefei,Anhui 230337,China) |
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| Abstract: | To resolve the problem of 2D ISAR imaging of rotating micro-motion targets,firstly,this paper analysis the range-slow-time echo characteristics of rotating micro-motion and rigid parts.The Sine-Demodulation RWT based imaging algorithm for rotating micro-motion parts is proposed.The position parameters of rotating micro-motion scatters are estimated and their echoes are removed.The remained echoes,based on RWT,are used to reconstruct the rigid signals and ISAR imaging for rigid parts is performed by RD algor... |
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| Keywords: | inverse synthetic aperture radar(ISAR) micro-motion target imaging Radon-Wigner transformation(RWT) |
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