| 提高光学遥感卫星图像几何精度总体设计分析 |
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| 引用本文： | 金涛,李贞,李婷,杨冬.提高光学遥感卫星图像几何精度总体设计分析[J].宇航学报,2013,34(8):1159-1165. |
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| 作者姓名： | 金涛 李贞 李婷 杨冬 |
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| 作者单位： | 中国空间技术研究院总体部，北京 100094 |
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| 摘 要： | 针对如何提高我国光学遥感卫星图像几何定位精度问题，从影响几何成像质量的关键要素——内外方位元素出发，介绍地面几何处理方法，并基于多颗卫星研制、地面量测试验及在轨验证情况，对高分辨率光学遥感卫星和多线阵观测卫星的几何精度的星-地全链路影响误差项进行对比分析，通过理论分析找出了约束我国高分辨率遥感卫星几何精度的关键问题，最后探讨了如何通过星上设计配合地面处理提高高分辨率遥感卫星的几何精度。
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| 关 键 词： | 高分辨率光学遥感卫星 几何精度 随机误差 系统误差 内检校 外检校 |
| 收稿时间： | 2012-12-19 |
System Design and Analysis for Improving Geometric Accuracy of High Resolution Optical Remote Sensing Satellite Image |
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| JIN Tao,LI Zhen,LI Ting,YANG Dong.System Design and Analysis for Improving Geometric Accuracy of High Resolution Optical Remote Sensing Satellite Image[J].Journal of Astronautics,2013,34(8):1159-1165. |
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| Authors: | JIN Tao LI Zhen LI Ting YANG Dong |
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| Affiliation: | Institute of Spacecraft System Engineering，CAST, Beijing 100094，China |
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| Abstract: | At the present, how to improve the geometric accuracy optical remote sensing satellite image in China is getting more and more attention. Starting with the key geometric elements affeting the imaging quality-interior and exterior orientation elements, the ground geometric processing of the spaceborne optical image is introduced in this paper. Then by combining the development and manufacture, ground measurement trials and on board calibration results of multiple optical satellites, the satellite ground link factors affecting the geometric accuracy of both high resolution optical remote sensing satellites and observation satellites with multiple linear arrays are compared and analyzed in detail. Based on the summed effect factors, the key constraints in system design and ground processing are accordingly pointed out. Finally, how to improve the geometric accuracy of high resolution optical image is discussed by implementing specific system designs and means in the satellite development to cooperate with the ground processing. |
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| Keywords: | High resolution optical remote sensing satellite Geometric accuracy Radom errors Systematic errors Interior calibration Exterior calibration |
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