| 斜视聚束模式合成孔径雷达的频率Scaling成像算法 |
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| 引用本文： | 孙进平,袁运能,柳重堪,毛士艺. 斜视聚束模式合成孔径雷达的频率Scaling成像算法[J]. 电子学报, 2001, 29(12): 1593-1596 |
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| 作者姓名： | 孙进平 袁运能 柳重堪 毛士艺 |
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| 作者单位： | 北京航空航天大学电子工程系203教研室,北京 100083 |
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| 基金项目： | 国家自然科学基金 (No.68931 0 4 0 ) |
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| 摘 要： | 作为一种新的聚束模式合成孔径雷达(Spotlight SAR)成像算法,频率Scaling算法(FSA)在不进行插值操作的情况下,可以对距离单元徙动(RCM)实现精确校正.本文详细研究了频率Scaling算法在大斜视角情况下Spotlight SAR的成像算法.在原有算法的基础上提出了斜视模型下的频率Scaling算法.点目标仿真和对原始回波数据的成像结果都证实了该算法的可行性.
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| 关 键 词： | 合成孔径雷达 聚束模式 成像算法 |
| 文章编号： | 0372-2112(2001)12-1593-04 |
High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm |
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| SUN Jin ping,YUAN Yun neng,LIU Zhong kan,MAO Shi yi. High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm[J]. Acta Electronica Sinica, 2001, 29(12): 1593-1596 |
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| Authors: | SUN Jin ping YUAN Yun neng LIU Zhong kan MAO Shi yi |
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| Affiliation: | Department of Electronic Engineering,Beijing Univ.of Aeronautics and Astronautics,Beijing 100083,China |
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| Abstract: | As a new spotlight SAR image formation algorithm,Frequency Scaling approach precisely performs the range cell migration correction without interpolation by using a novel frequency scaling operation.A new Frequency scaling image formation algorithm suitable for high squint angle is proposed in this paper.Point target simulations up to 45 deg squint angle have been carried out to show the validity of the improved algorithm.Also presented is a spotlight image extracted from stripmap raw data of DLR's E-SAR system. |
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| Keywords: | synthetic aperture radar spotlight Mode imaging algorithm |
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