| 机载SAR动目标成象研究 |
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| 引用本文： | 李景文,何峻湘.机载SAR动目标成象研究[J].北京航空航天大学学报,1995,21(1):15-21. |
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| 作者姓名： | 李景文 何峻湘 |
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| 作者单位： | 北京航空航天大学电子工程系 |
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| 摘 要： | 在分析机载合成孔径雷达运动目标成象特点的基础上，探讨了一种动目标成象的前置滤波方法，指出其存在的问题，提出了在前置滤波后进行参数估计的后处理形成，该方法基于时间－频率联合分析法，能得到运动目标的精细成象结果，计算机模拟验证了方法的有效性。
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| 关 键 词： | 合成孔径雷达 活动目标 成象 参数估计 |
THE STUDY OF IMAGING OF MOVING TARGETS WITH SAR |
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| Li Jingwen, He Junxiang, Zhou Yinqing.THE STUDY OF IMAGING OF MOVING TARGETS WITH SAR[J].Journal of Beijing University of Aeronautics and Astronautics,1995,21(1):15-21. |
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| Authors: | Li Jingwen He Junxiang Zhou Yinqing |
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| Abstract: | Considering the effects of slowly moving targets which appear in the output of a synthetic aperture imaging radar,an approach using a prefilter prior to azimuth compression in SAR is described. Then a new parameter estimation method based on joint time-frequency analysis is discussed and it can generate high resolution image. The computer simulation results illustrate its availability. |
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| Keywords: | synthetic aperture radar moving targets image formation filtering algorithm parameter estimations time-frequency distribution |
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