| 地形因素对InSAR影像配准的影响及分析 |
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| 引用本文： | 潘斌,胡朵朵.地形因素对InSAR影像配准的影响及分析[J].地理空间信息,2010,8(6):11-14. |
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| 作者姓名： | 潘斌 胡朵朵 |
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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 |
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| 基金项目： | 国家863计划资助项目，测绘遥感信息工程国家重点实验室专项科研经费资助项目 |
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| 摘 要： | 常规的InSAR影像配准方法主要是根据相干系数最大的原则进行配准,在短基线和高相干区域可以取得很好的效果。但该方法未考虑到地形因素的影响,在地形起伏较大的区域容易导致误匹配。为避免该问题,通过考虑地形因素进行InSAR影像配准来提高配准的精度,对地形因素在InSAR影像配准时的影响进行研究,通过比较分析常规配准方法与考虑地形因素配准方法的结果,表明利用地形信息辅助配准能够部分提高配准的精度,尤其是在方位向和失相干区域。
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| 关 键 词： | InSAR 配准 地形因素 |
Analysis of the Impact of Terrain Factors on InSAR Image Co-registration |
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| PAN Bin,HU Duoduo.Analysis of the Impact of Terrain Factors on InSAR Image Co-registration[J].Geospatial Information,2010,8(6):11-14. |
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| Authors: | PAN Bin HU Duoduo |
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| Institution: | (School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China) |
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| Abstract: | Conventional method of InSAR image coregistration is mainly based on the principle of maximum co-herence,which is sufficient in the short baseline areas and highly correlated regions.However,in the areas with big topographic relief this method will lead to misregistration easily since taking no account the impact of terrain factors.To avoid this problem,a new method considering the terrain factors should be used to enhance the accuracy.Impact of terrain factors on InSAR image co-registration was first studied,then the results between the conventional method and the new method considering the terrain factors were compared and analyzed.The results show that the new method can partly improve the co-registration accuracy,especially in azimuth direction and the decorrelation regions. |
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| Keywords: | InSAR co-registration terrain factors |
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