| 星载SAR自然地面场景仿真方法研究 |
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| 引用本文： | 陈杰,周荫清,李春升.星载SAR自然地面场景仿真方法研究[J].电子学报,2001,29(9):1202-1205. |
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| 作者姓名： | 陈杰 周荫清 李春升 |
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| 作者单位： | 北京航空航天大学电子工程系,北京 100083 |
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| 基金项目： | 国家863计划308主题基金 |
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| 摘 要： | 本文对星载SAR图象仿真方法进行了深入地研究,基于分形理论、小面单元模型和陆地杂波散射特性模型提出了一种仿真自然地面场景星载SAR图象的实现方法.根据实地勘测的DEM数据进行计算机仿真,实验结果表明:利用本文方法仿真的星载SAR图象逼真地反映了自然地面场景的随机起伏特性和雷达图象特有的几何畸变现象,能够对星载SAR系统方案设计进行验证,对实现SAR卫星总体方案的优化设计具有重要意义.
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| 关 键 词： | 星载合成孔径雷达 分形 小面单元模型 雷达散射模型 |
| 文章编号： | 0372-2112(2001)09-1202-04 |
| 收稿时间： | 2000-06-20 |
Spaceborne Synthetic Aperture Radar Image Simulation of Natural Ground Scene |
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| CHEN Jie,ZHOU Yin-qing,LI Chun-sheng.Spaceborne Synthetic Aperture Radar Image Simulation of Natural Ground Scene[J].Acta Electronica Sinica,2001,29(9):1202-1205. |
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| Authors: | CHEN Jie ZHOU Yin-qing LI Chun-sheng |
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| Affiliation: | Department of Electronic Engineering,Beijing University of Aeronautics and Astronatics,Beijing 100083,China |
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| Abstract: | Spaceborne synthetic aperture radar (SAR) image simulation methods are investigated in this paper. A new method is proposed based on fractal theory, facet model and clutter scattering characteristic model. Digital elevation model of a natural terrain is used in computer simulation. The simulation results demonstrate that the stochastic properties and special prometric distortion phe- nomena of natural ground scene spaceborne SAR image are reflected in the simulated images. The simulation methed is suitable for verification of SAR satellite system scenario, and it has significant importance to realize the optimization of system scenario of SAR satellite. |
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| Keywords: | spaceborne synthetic aperture radar fractal facet model radar scattering model |
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