| 一种基于特征点权重的机载InSAR系统区域网干涉参数定标方法 |
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| 引用本文： | 韩松涛,向茂生.一种基于特征点权重的机载InSAR系统区域网干涉参数定标方法[J].电子与信息学报,2010,32(5):1244-1247. |
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| 作者姓名： | 韩松涛 向茂生 |
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| 作者单位： | 1. 中国科学院电子学研究所微波成像技术国家级重点实验室,北京,100190;中国科学院研究生院,北京,100039
2. 中国科学院电子学研究所微波成像技术国家级重点实验室,北京,100190 |
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| 基金项目： | 国家863计划项目(2007AA120302);;国家973计划项目(2009CB724003)资助课题 |
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| 摘 要： | 干涉参数外定标可以获取干涉相位偏置，并对干涉系统基线参数进行修正，提高干涉系统3维定位的精度。该文提出了一种新的区域网干涉参数定标算法，该方法采用特征点提取、最优相关匹配技术实现对交互连接的数据块同名点提取；利用加权联合定标技术实现少量控制点条件下干涉数据的参数定标，并对定标结果进行了理论分析。通过对具有不同地貌特征的实测机载数据的处理，验证了处理算法的有效性。
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| 关 键 词： | 干涉合成孔径雷达 干涉参数定标 特征点提取 同名点 加权联合定标 |
| 收稿时间： | 2009-4-30 |
| 修稿时间： | 2009-9-17 |
A Bundle Adjustment Calibration Method for Airborne InSAR System Based on Weighting of Feature Points |
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| Han Song-tao,Xiang Mao-sheng.A Bundle Adjustment Calibration Method for Airborne InSAR System Based on Weighting of Feature Points[J].Journal of Electronics & Information Technology,2010,32(5):1244-1247. |
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| Authors: | Han Song-tao Xiang Mao-sheng |
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| Affiliation: | The National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;Graduate University of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Interferometric parameters calibration of InSAR system can acquire both interferometric phase bias and accurate baseline parameters. Then planimetric and vertical accuracies can be improved much. An approach of interferometric calibration over very large areas is presented in this paper. It acquired corresponding points using feature points extraction and optimal matching, then weighted bundle adjustment is induced to realize calibration of each sub-data simultaneously. The calibration parameters are analyzed. Results using airborne data show robust of the algorithm with respect to different terrain type. |
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| Keywords: | InSAR Interferometric calibration Feature points extraction Corresponding points Weighted bundle adjustment calibration |
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