| 一种基于干涉条纹频率的星载InSAR基线估计新方法 |
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| 引用本文： | 徐华平,朱玲凤,刘向华,陈怡菲.一种基于干涉条纹频率的星载InSAR基线估计新方法[J].电子学报,2011,39(9):2212-2217. |
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| 作者姓名： | 徐华平 朱玲凤 刘向华 陈怡菲 |
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| 作者单位： | 北京航空航天大学电子信息工程学院,北京,100191 |
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| 摘 要： | 现有基于干涉复图像的基线估计方法采用平地假设并利用傅里叶变换估计条纹频率,应用于星载InSAR时基线估计误差很大.本文针对星载InSAR,从基线计算公式和条纹频率估计两个方面对现有基于干涉复图像的基线估计方法进行改进,提出了一种基于干涉条纹频率的高精度星载InSAR基线估计新方法.在考虑地球曲率的情况下,推导了星载In...
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| 关 键 词： | 干涉合成孔径雷达 基线估计 干涉条纹频率 半牛顿迭代法 线性拟合 |
| 收稿时间： | 2010-06-24 |
A Novel Baseline Estimation Approach of Spaceborne InSAR Based on Interferometric Fringe Frequency |
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| XU Hua-ping,ZHU Ling-feng,LIU Xiang-hua,CHEN Yi-fei.A Novel Baseline Estimation Approach of Spaceborne InSAR Based on Interferometric Fringe Frequency[J].Acta Electronica Sinica,2011,39(9):2212-2217. |
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| Authors: | XU Hua-ping ZHU Ling-feng LIU Xiang-hua CHEN Yi-fei |
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| Affiliation: | XU Hua-ping,ZHU Ling-feng,LIU Xiang-hua,CHEN Yi-fei(Department of Electronic and Information Engineering,Beijing University of Aeronautics &Astronautics,Beijing 100191,China) |
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| Abstract: | We proposed a novel high precision spaceborne InSAR baseline estimation approach based on interferometric fringe frequency which makes the improvements from two aspects:the baseline calculation formula and the fringe frequency estimation precision.The accurate mathematic relationship between the baseline parameters and the interferometric fringe frequency was deduced considering the earth curvature.Also the Semi-Newton iterative method was introduced to estimate the fringe frequency of each pixel in the com... |
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| Keywords: | interferometric synthetic aperture radar(InSAR) baseline estimation interferometric fringe frequency semi-Newton iterative method linear fitting |
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