| 一种新的稀少控制条件下机载SAR影像区域网平差方法的研究 |
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| 引用本文： | 马婧,尤红建,龙辉,丁赤飚.一种新的稀少控制条件下机载SAR影像区域网平差方法的研究[J].电子与信息学报,2010,32(12):2842-2847. |
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| 作者姓名： | 马婧 尤红建 龙辉 丁赤飚 |
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| 作者单位： | 1. 中国科学院电子学研究所,北京,100190;中国科学院空间信息处理与应用系统技术重点实验室,北京,100190;中国科学院研究生院,北京,100190
2. 中国科学院电子学研究所,北京,100190;中国科学院空间信息处理与应用系统技术重点实验室,北京,100190 |
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| 基金项目： | 国家自然科学基金，航空科学基金 |
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| 摘 要： | 困难测图地区缺少控制点一直是SAR图像校正的难点之一。该文针对机载SAR影像，提出了一种新的基于F.leberl构像模型平差的方法。借鉴光束法平差方法中解算前、后方交会的思想，交替趋近求解未知参量。实验结果表明，该方法不仅实现了在稀少控制点下求得定位参数的稳定解，而且有效减小了航带间同名点坐标误差，平差精度达到了单航带多控制点独立校正的水平。
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| 关 键 词： | 机载SAR影像 F.leberl模型 区域网平差 |
| 收稿时间： | 2009-11-13 |
A New Method of Block Adjustment of Airborne SAR Images with Few GCPs |
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| Ma Jing,You Hong-jian,Long Hui,Ding Chi-biao.A New Method of Block Adjustment of Airborne SAR Images with Few GCPs[J].Journal of Electronics & Information Technology,2010,32(12):2842-2847. |
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| Authors: | Ma Jing You Hong-jian Long Hui Ding Chi-biao |
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| Affiliation: | Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China Key Laboratory of Technology in Geo-spatial Information Processing and Application System, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China Graduate University, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Lacking of GCPs (Ground Control Points) in hard survey area is one of the most difficult problems of geometric rectification. This paper proposes a new method of large SAR image-block adjustment based on F.leberl model. The parameters of the images and ground coordinate of pass points can be calculated with the use of alternative and iterative algorithm. The result shows that this method could get steady result with few GCPs and the error of tie points can also be decreased effectively, the accuracy reaches to the lever of single-image-calibration method. |
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| Keywords: | Airborne SAR images F leberl model Block adjustment |
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