| 卫星姿态指向抖动与SAR成像质量关系研究 |
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| 引用本文： | 陈杰,周荫清,李春升,陈元藻.卫星姿态指向抖动与SAR成像质量关系研究[J].北京航空航天大学学报,2001,27(5):518-521. |
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| 作者姓名： | 陈杰 周荫清 李春升 陈元藻 |
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| 作者单位： | 1.北京航空航天大学 电子工程系 |
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| 摘 要： | 建立了卫星姿态指向抖动的数学模型,基于成对回波畸变理论推导了存在姿态指向抖动时点目标扩展函数的解析表达式,提出了卫星姿态指向抖动幅度与星载SAR(合成孔径雷达)成像质量关系的定量分析方法,为SAR卫星总体分析与设计提供了理论依据.计算机仿真结果验证了结论的正确性.
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| 关 键 词： | 合成孔径雷达 卫星姿态 雷达回波 成对回波 |
| 文章编号： | 1001-5965(2001)05-0518-04 |
| 收稿时间： | 2000-03-03 |
| 修稿时间： | 2000年3月3日 |
Relationship Between Satellite Attitude Jitter and SAR Imaging Quality |
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| CHEN Jie,ZHOU Yin-qing,LI Chun-sheng,CHEN Yuan-zao.Relationship Between Satellite Attitude Jitter and SAR Imaging Quality[J].Journal of Beijing University of Aeronautics and Astronautics,2001,27(5):518-521. |
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| Authors: | CHEN Jie ZHOU Yin-qing LI Chun-sheng CHEN Yuan-zao |
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| Institution: | 1.Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering2. Shanghai Institute of Satellite System Engineering |
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| Abstract: | To provide a theoretical foundation for the design and analysis of spaceborne SAR, a method quantitatively analyzing the relationship between attitude distortion and spaceborne SAR imaging quality was developed, based on a mathematical model describing satellite attitude jitter and an expression of impulse response function for attitude jitter. The validity of the theoretical results was confirmed by computer simulation. |
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| Keywords: | synthetic aperture radar satellite attitude radar echo pared echo |
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