| 弹载斜视SAR成像的改进波数域算法 |
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| 引用本文： | 肖忠源, 徐华平, 李春升. 弹载斜视SAR成像的改进波数域算法[J]. 电子与信息学报, 2011, 33(6): 1453-1458. doi: 10.3724/SP.J.1146.2010.01192 |
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| 作者姓名： | 肖忠源 徐华平 李春升 |
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| 作者单位： | 北京航空航天大学电子信息工程学院; |
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| 基金项目： | 国家自然科学基金(60901055); 航空基金(20090151001)资助课题 |
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| 摘 要： | 导弹非匀速直线运动且速度快的特点，使得弹载SAR回波信号的多普勒参数随斜距的变化较大，因此在波数域进行相位补偿的波数域算法很难实现弹载SAR测绘带内的高精度成像处理。该文在经典波数域算法及相关文献的基础上对波数域成像算法进行改进，将2维波数域中的方位压缩处理变换至时域或空域进行，从而可完成成像过程中多普勒参数适应距离的变化，降低原有算法使用同一参数带来的相位误差，因此改进算法能适用于宽测绘带的弹载SAR精确成像。仿真实验验证了改进算法的有效性。
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| 关 键 词： | 弹载SAR 宽测绘带 波数域算法 |
| 收稿时间： | 2010-11-04 |
| 修稿时间： | 2011-01-17 |
A Modified Wave-number Domain Algorithm for Missile-borne Squinted SAR Data Processing |
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| Xiao Zhong-Yuan, Xu Hua-Ping, Li Chun-Sheng. A Modified Wave-number Domain Algorithm for Missile-borne Squinted SAR Data Processing[J]. Journal of Electronics & Information Technology, 2011, 33(6): 1453-1458. doi: 10.3724/SP.J.1146.2010.01192 |
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| Authors: | Xiao Zhong-yuan Xu Hua-ping Li Chun-sheng |
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| Affiliation: | Xiao Zhong-yuan Xu Hua-ping Li Chun-sheng(School of Electronics and Information Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | The Doppler parameters of missile-borne SAR received signal vary much with slant range due to missiles' high speed and non-ideal movements.Thus applying the classical wave-number domain algorithm can hardly achieve high precision for missile-borne SAR imaging processing.This paper proposes a modified wave-number domain algorithm based on the classical one to meet the demand of high resolution and wide swath for missile-borne SAR imaging.Azimuth compression is implemented in the range time domain or range sp... |
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| Keywords: | Missile-borne SAR Wide swath Wave-number domain algorithm |
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