| 卫星总体参数对SAR分辨特性影响分析及仿真研究 |
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| 引用本文： | 张锦绣,曹喜滨.卫星总体参数对SAR分辨特性影响分析及仿真研究[J].宇航学报,2004,25(2):163-168. |
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| 作者姓名： | 张锦绣 曹喜滨 |
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| 作者单位： | 哈尔滨工业大学,卫星技术研究所,哈尔滨,150001 |
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| 摘 要： | 建立了星载合成孔径雷达(SAR)分辨特性的数学表达式，分析了地球自转和地球扁率、轨道摄动、卫星姿态指向误差和稳定度以及星载SAR的中心视角对星载SAR分辨特性的影响，并进行了数字仿真。分析仿真结果表明，滚动向指向误差和稳定度以及星载SAR中心视角对分辨特性影响较大，该研究结果对于卫星总体参数确定和优化设计具有参考价值。
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| 关 键 词： | 星载合成孔径雷达 分辨特性 轨道摄动 姿态指向误差 |
| 文章编号： | 1000-1328(2004)02-0163-06 |
Simulation and analysis of satellite system parameter effect on SAR resolution performance |
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| ZHANG Jin-xiu,CAO Xi-bin.Simulation and analysis of satellite system parameter effect on SAR resolution performance[J].Journal of Astronautics,2004,25(2):163-168. |
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| Authors: | ZHANG Jin-xiu CAO Xi-bin |
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| Abstract: | The formulation of spaceborne Synthetic Aperture Radar(SAR) resolution performance was built in this paper.The effects on spaceborne SAR resolution performance,resulting from earth rotation and oblatness,orbit perturbation,attitude errors and stabilization and SAR squint angle,were analyzed.The simulation results prove that roll error and its stabilization and spaceborne SAR squint angle are the key factors to SAR resolution performance errors.The conclusion is valuable to determine and optimize the satellite system parameters. |
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| Keywords: | Spaceborne SAR Resolution performance Orbit perturbation Attitude errors |
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