| 线阵推扫光学卫星外方位元素自检校方法 |
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| 引用本文： | 蒋永华,徐凯,张过,朱瑞飞.线阵推扫光学卫星外方位元素自检校方法[J].同济大学学报(自然科学版),2016,44(8):1266-1271. |
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| 作者姓名： | 蒋永华 徐凯 张过 朱瑞飞 |
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| 作者单位： | 武汉大学 遥感信息工程学院，湖北 武汉 430079,武汉大学 测绘遥感信息工程国家重点实验室，湖北 武汉 430079,武汉大学 测绘遥感信息工程国家重点实验室，湖北 武汉 430079,中国科学院 长春光学精密机械与物理研究所， 吉林 长春 130033；长光卫星技术有限公司， 吉林 长春 130033 |
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| 基金项目： | 国家自然科学基金项目（41201361, 41501503） |
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| 摘 要： | 在深入分析线阵推扫光学卫星外方位元素误差对几何定位影响特性的基础上,利用俯仰角、滚动角误差引起几何定位误差的方向特性,提出了不依赖地面控制点的外方位元素自检校方法.采用仿真数据验证了方法的正确性,结果表明该方法能够补偿外方位元素误差,有效提升无控几何定位精度.
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| 关 键 词： | 几何检校场 外检校 自检校 几何定位精度 |
| 收稿时间： | 2015/11/14 0:00:00 |
| 修稿时间： | 2016/5/12 0:00:00 |
A Method of Exterior Auto Calibration for Linear CCD Array Pushbroom Optical Satellites |
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| JIANG Yonghu,XU Kai,ZHANG Guo and ZHU Ruifei.A Method of Exterior Auto Calibration for Linear CCD Array Pushbroom Optical Satellites[J].Journal of Tongji University(Natural Science),2016,44(8):1266-1271. |
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| Authors: | JIANG Yonghu XU Kai ZHANG Guo and ZHU Ruifei |
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| Institution: | School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China,State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China,State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China and Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; Chang Guang Satellite Technology Co. Ltd., Changchun 130033, China |
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| Abstract: | An exterior auto calibration method without relying on ground control points (GCPs) was proposed based on the analysis of the errors of exterior orientation elements affecting positioning accuracy. The character that the positioning error caused by pitch angle and roll angle is equal in value but opposite in sign is used as the foundation of the method. Moreover, the proposed method can be verified by the simulation data. Experimental results show that errors of exterior orientation elements can be compensated and geometric accuracy can be effectively improved without relying on GCPs. |
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