| 逆合成孔径雷达运动补偿中一种包络对齐新方法 |
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| 引用本文： | 黄小红,邱兆坤,陈曾平. 逆合成孔径雷达运动补偿中一种包络对齐新方法[J]. 信号处理, 2006, 22(2): 230-232 |
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| 作者姓名： | 黄小红 邱兆坤 陈曾平 |
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| 作者单位： | 国防科技大学ATR国家重点实验室,湖南,长沙,410073 |
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| 摘 要： | 逆合成孔径雷达(ISAR)成像中,包络对齐是初相校正和图像重构的基础。基于刚体模型的包络相关法对具有大动态范围的回波处理时对齐效果较差,针对这一问题,本文提出了一种基于自适应幂变换的相关包络对齐新方法,对齐质量明显提高,大量实测数据验证了该方法的有效性。
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| 关 键 词： | 运动补偿 包络对齐 成像 幂变换 |
| 修稿时间： | 2004-01-10 |
A new envelope alignment method for ISAR motion compensation |
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| Huang Xiaohong,Qiu Zhaokun,Chen Zengping. A new envelope alignment method for ISAR motion compensation[J]. Signal Processing(China), 2006, 22(2): 230-232 |
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| Authors: | Huang Xiaohong Qiu Zhaokun Chen Zengping |
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| Abstract: | Envelope alignment is the base in ISAR imaging, conventional envelope correlation method is widely used, however, this method require that the target must be rigid, when the target has a sub_echo that changes quickly, the range profiles are not similar any more, this method can not work well. For this reason, a new envelope correlation method based on adaptive power transformation is proposed, power transformation is used to reduce the variational scope of the amplitude of range profiles, then the range profiles are become similar. Using this method the range bin can be aligned correctly, which is verified by real radar data. |
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| Keywords: | ISAR |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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